---
_id: '13457'
abstract:
- lang: eng
text: "Context. Observations of massive stars in open clusters younger than ∼8 Myr
have shown that a majority of them are in binary systems, most of which will interact
during their life. While these can be used as a proxy of the initial multiplicity
properties, studying populations of massive stars older than ∼20 Myr allows us
to probe the outcome of these interactions after a significant number of systems
have experienced mass and angular momentum transfer and may even have merged.\r\n\r\nAims.
Using multi-epoch integral-field spectroscopy, we aim to investigate the multiplicity
properties of the massive-star population in the dense core of the ∼40 Myr old
cluster NGC 330 in the Small Magellanic Cloud in order to search for possible
imprints of stellar evolution on the multiplicity properties.\r\n\r\nMethods.
We obtained six epochs of VLT/MUSE observations operated in wide-field mode with
the extended wavelength setup and supported by adaptive optics. We extracted spectra
and measured radial velocities for stars brighter than mF814W = 19. We identified
single-lined spectroscopic binaries through significant RV variability with a
peak-to-peak amplitude larger than 20 km s−1. We also identified double-lined
spectroscopic binaries, and quantified the observational biases for binary detection.
In particular, we took into account that binary systems with similar line strengths
are difficult to detect in our data set.\r\n\r\nResults. The observed spectroscopic
binary fraction among stars brighter than mF814W = 19 (approximately 5.5 M⊙ on
the main sequence) is fSBobs = 13.2 ± 2.0%. Considering period and mass ratio
ranges from log(P) = 0.15−3.5 (about 1.4 to 3160 d), q = 0.1−1.0, and a representative
set of orbital parameter distributions, we find a bias-corrected close binary
fraction of fcl = 34−7+8%. This fraction seems to decline for the fainter stars,
which indicates either that the close binary fraction drops in the B-type domain,
or that the period distribution becomes more heavily weighted toward longer orbital
periods. We further find that both fractions vary strongly in different regions
of the color-magnitude diagram, which corresponds to different evolutionary stages.
This probably reveals the imprint of the binary history of different groups of
stars. In particular, we find that the observed spectroscopic binary fraction
of Be stars (fSBobs = 2 ± 2%) is significantly lower than that of B-type stars
(fSBobs = 9 ± 2%).\r\n\r\nConclusions. We provide the first homogeneous radial
velocity study of a large sample of B-type stars at a low metallicity ([Fe/H]
≲ −1.0). The overall bias-corrected close binary fraction (log(P) < 3.5 d) of
the B-star population in NGC 330 is lower than the fraction reported for younger
Galactic and Large Magellanic Cloud clusters in previous works. More data are
needed, however, to establish whether the observed differences are caused by an
age or a metallicity effect."
article_number: A70
article_processing_charge: No
article_type: original
author:
- first_name: J.
full_name: Bodensteiner, J.
last_name: Bodensteiner
- first_name: H.
full_name: Sana, H.
last_name: Sana
- first_name: C.
full_name: Wang, C.
last_name: Wang
- first_name: N.
full_name: Langer, N.
last_name: Langer
- first_name: L.
full_name: Mahy, L.
last_name: Mahy
- first_name: G.
full_name: Banyard, G.
last_name: Banyard
- first_name: A.
full_name: de Koter, A.
last_name: de Koter
- first_name: S. E.
full_name: de Mink, S. E.
last_name: de Mink
- first_name: C. J.
full_name: Evans, C. J.
last_name: Evans
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: L. R.
full_name: Patrick, L. R.
last_name: Patrick
- first_name: F. R. N.
full_name: Schneider, F. R. N.
last_name: Schneider
- first_name: F.
full_name: Tramper, F.
last_name: Tramper
citation:
ama: Bodensteiner J, Sana H, Wang C, et al. The young massive SMC cluster NGC 330
seen by MUSE. II. Multiplicity properties of the massive-star population. Astronomy
& Astrophysics. 2021;652. doi:10.1051/0004-6361/202140507
apa: Bodensteiner, J., Sana, H., Wang, C., Langer, N., Mahy, L., Banyard, G., …
Tramper, F. (2021). The young massive SMC cluster NGC 330 seen by MUSE. II. Multiplicity
properties of the massive-star population. Astronomy & Astrophysics.
EDP Sciences. https://doi.org/10.1051/0004-6361/202140507
chicago: Bodensteiner, J., H. Sana, C. Wang, N. Langer, L. Mahy, G. Banyard, A.
de Koter, et al. “The Young Massive SMC Cluster NGC 330 Seen by MUSE. II. Multiplicity
Properties of the Massive-Star Population.” Astronomy & Astrophysics.
EDP Sciences, 2021. https://doi.org/10.1051/0004-6361/202140507.
ieee: J. Bodensteiner et al., “The young massive SMC cluster NGC 330 seen
by MUSE. II. Multiplicity properties of the massive-star population,” Astronomy
& Astrophysics, vol. 652. EDP Sciences, 2021.
ista: Bodensteiner J, Sana H, Wang C, Langer N, Mahy L, Banyard G, de Koter A, de
Mink SE, Evans CJ, Götberg YLL, Patrick LR, Schneider FRN, Tramper F. 2021. The
young massive SMC cluster NGC 330 seen by MUSE. II. Multiplicity properties of
the massive-star population. Astronomy & Astrophysics. 652, A70.
mla: Bodensteiner, J., et al. “The Young Massive SMC Cluster NGC 330 Seen by MUSE.
II. Multiplicity Properties of the Massive-Star Population.” Astronomy &
Astrophysics, vol. 652, A70, EDP Sciences, 2021, doi:10.1051/0004-6361/202140507.
short: J. Bodensteiner, H. Sana, C. Wang, N. Langer, L. Mahy, G. Banyard, A. de
Koter, S.E. de Mink, C.J. Evans, Y.L.L. Götberg, L.R. Patrick, F.R.N. Schneider,
F. Tramper, Astronomy & Astrophysics 652 (2021).
date_created: 2023-08-03T10:11:34Z
date_published: 2021-08-12T00:00:00Z
date_updated: 2023-08-21T11:49:36Z
day: '12'
doi: 10.1051/0004-6361/202140507
extern: '1'
external_id:
arxiv:
- '2104.13409'
intvolume: ' 652'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1051/0004-6361/202140507
month: '08'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: The young massive SMC cluster NGC 330 seen by MUSE. II. Multiplicity properties
of the massive-star population
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 652
year: '2021'
...
---
_id: '13455'
abstract:
- lang: eng
text: The majority of massive stars live in binary or multiple systems and will
interact with a companion during their lifetimes, which helps to explain the observed
diversity of core-collapse supernovae. Donor stars in binary systems can lose
most of their hydrogen-rich envelopes through mass transfer. As a result, not
only are the surface properties affected, but so is the core structure. However,
most calculations of the core-collapse properties of massive stars rely on single-star
models. We present a systematic study of the difference between the pre-supernova
structures of single stars and stars of the same initial mass (11–21 M⊙) that
have been stripped due to stable post-main-sequence mass transfer at solar metallicity.
We present the pre-supernova core composition with novel diagrams that give an
intuitive representation of the isotope distribution. As shown in previous studies,
at the edge of the carbon-oxygen core, the binary-stripped star models contain
an extended gradient of carbon, oxygen, and neon. This layer remains until core
collapse and is more extended in mass for higher initial stellar masses. It originates
from the receding of the convective helium core during core helium burning in
binary-stripped stars, which does not occur in single-star models. We find that
this same evolutionary phase leads to systematic differences in the final density
and nuclear energy generation profiles. Binary-stripped star models have systematically
higher total masses of carbon at the moment of core collapse compared to single-star
models, which likely results in systematically different supernova yields. In
about half of our models, the silicon-burning and oxygen-rich layers merge after
core silicon burning. We discuss the implications of our findings for the “explodability”,
supernova observations, and nucleosynthesis of these stars. Our models are publicly
available and can be readily used as input for detailed supernova simulations.
article_number: A58
article_processing_charge: No
article_type: original
author:
- first_name: E.
full_name: Laplace, E.
last_name: Laplace
- first_name: S.
full_name: Justham, S.
last_name: Justham
- first_name: M.
full_name: Renzo, M.
last_name: Renzo
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: R.
full_name: Farmer, R.
last_name: Farmer
- first_name: D.
full_name: Vartanyan, D.
last_name: Vartanyan
- first_name: S. E.
full_name: de Mink, S. E.
last_name: de Mink
citation:
ama: 'Laplace E, Justham S, Renzo M, et al. Different to the core: The pre-supernova
structures of massive single and binary-stripped stars. Astronomy & Astrophysics.
2021;656. doi:10.1051/0004-6361/202140506'
apa: 'Laplace, E., Justham, S., Renzo, M., Götberg, Y. L. L., Farmer, R., Vartanyan,
D., & de Mink, S. E. (2021). Different to the core: The pre-supernova structures
of massive single and binary-stripped stars. Astronomy & Astrophysics.
EDP Sciences. https://doi.org/10.1051/0004-6361/202140506'
chicago: 'Laplace, E., S. Justham, M. Renzo, Ylva Louise Linsdotter Götberg, R.
Farmer, D. Vartanyan, and S. E. de Mink. “Different to the Core: The Pre-Supernova
Structures of Massive Single and Binary-Stripped Stars.” Astronomy & Astrophysics.
EDP Sciences, 2021. https://doi.org/10.1051/0004-6361/202140506.'
ieee: 'E. Laplace et al., “Different to the core: The pre-supernova structures
of massive single and binary-stripped stars,” Astronomy & Astrophysics,
vol. 656. EDP Sciences, 2021.'
ista: 'Laplace E, Justham S, Renzo M, Götberg YLL, Farmer R, Vartanyan D, de Mink
SE. 2021. Different to the core: The pre-supernova structures of massive single
and binary-stripped stars. Astronomy & Astrophysics. 656, A58.'
mla: 'Laplace, E., et al. “Different to the Core: The Pre-Supernova Structures of
Massive Single and Binary-Stripped Stars.” Astronomy & Astrophysics,
vol. 656, A58, EDP Sciences, 2021, doi:10.1051/0004-6361/202140506.'
short: E. Laplace, S. Justham, M. Renzo, Y.L.L. Götberg, R. Farmer, D. Vartanyan,
S.E. de Mink, Astronomy & Astrophysics 656 (2021).
date_created: 2023-08-03T10:11:09Z
date_published: 2021-12-02T00:00:00Z
date_updated: 2023-08-21T11:49:15Z
day: '02'
doi: 10.1051/0004-6361/202140506
external_id:
arxiv:
- '2102.05036'
intvolume: ' 656'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1051/0004-6361/202140506
month: '12'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Different to the core: The pre-supernova structures of massive single and
binary-stripped stars'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 656
year: '2021'
...
---
_id: '13454'
abstract:
- lang: eng
text: Helium star–carbon-oxygen white dwarf (CO WD) binaries are potential single-degenerate
progenitor systems of thermonuclear supernovae. Revisiting a set of binary evolution
calculations using the stellar evolution code MESA, we refine our previous predictions
about which systems can lead to a thermonuclear supernova and then characterize
the properties of the helium star donor at the time of explosion. We convert these
model properties to near-UV/optical magnitudes assuming a blackbody spectrum and
support this approach using a matched stellar atmosphere model. These models will
be valuable to compare with pre-explosion imaging for future supernovae, though
we emphasize the observational difficulty of detecting extremely blue companions.
The pre-explosion source detected in association with SN 2012Z has been interpreted
as a helium star binary containing an initially ultra-massive WD in a multiday
orbit. However, extending our binary models to initial CO WD masses of up to 1.2
M⊙, we find that these systems undergo off-center carbon ignitions and thus are
not expected to produce thermonuclear supernovae. This tension suggests that,
if SN 2012Z is associated with a helium star–WD binary, then the pre-explosion
optical light from the system must be significantly modified by the binary environment
and/or the WD does not have a carbon-rich interior composition.
article_number: '241'
article_processing_charge: No
article_type: original
author:
- first_name: Tin Long Sunny
full_name: Wong, Tin Long Sunny
last_name: Wong
- first_name: Josiah
full_name: Schwab, Josiah
last_name: Schwab
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
citation:
ama: Wong TLS, Schwab J, Götberg YLL. Pre-explosion properties of Helium star donors
to thermonuclear supernovae. The Astrophysical Journal. 2021;922(2). doi:10.3847/1538-4357/ac27ae
apa: Wong, T. L. S., Schwab, J., & Götberg, Y. L. L. (2021). Pre-explosion properties
of Helium star donors to thermonuclear supernovae. The Astrophysical Journal.
American Astronomical Society. https://doi.org/10.3847/1538-4357/ac27ae
chicago: Wong, Tin Long Sunny, Josiah Schwab, and Ylva Louise Linsdotter Götberg.
“Pre-Explosion Properties of Helium Star Donors to Thermonuclear Supernovae.”
The Astrophysical Journal. American Astronomical Society, 2021. https://doi.org/10.3847/1538-4357/ac27ae.
ieee: T. L. S. Wong, J. Schwab, and Y. L. L. Götberg, “Pre-explosion properties
of Helium star donors to thermonuclear supernovae,” The Astrophysical Journal,
vol. 922, no. 2. American Astronomical Society, 2021.
ista: Wong TLS, Schwab J, Götberg YLL. 2021. Pre-explosion properties of Helium
star donors to thermonuclear supernovae. The Astrophysical Journal. 922(2), 241.
mla: Wong, Tin Long Sunny, et al. “Pre-Explosion Properties of Helium Star Donors
to Thermonuclear Supernovae.” The Astrophysical Journal, vol. 922, no.
2, 241, American Astronomical Society, 2021, doi:10.3847/1538-4357/ac27ae.
short: T.L.S. Wong, J. Schwab, Y.L.L. Götberg, The Astrophysical Journal 922 (2021).
date_created: 2023-08-03T10:10:58Z
date_published: 2021-12-03T00:00:00Z
date_updated: 2023-08-21T11:52:05Z
day: '03'
doi: 10.3847/1538-4357/ac27ae
extern: '1'
external_id:
arxiv:
- '2109.14817'
intvolume: ' 922'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2109.14817
month: '12'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Pre-explosion properties of Helium star donors to thermonuclear supernovae
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 922
year: '2021'
...
---
_id: '13453'
abstract:
- lang: eng
text: Most massive stars are born in binaries close enough for mass transfer episodes.
These modify the appearance, structure, and future evolution of both stars. We
compute the evolution of a 100-day-period binary, consisting initially of a 25
M⊙ star and a 17 M⊙ star, which experiences stable mass transfer. We focus on
the impact of mass accretion on the surface composition, internal rotation, and
structure of the accretor. To anchor our models, we show that our accretor broadly
reproduces the properties of ζ Ophiuchi, which has long been proposed to have
accreted mass before being ejected as a runaway star when the companion exploded.
We compare our accretor to models of single rotating stars and find that the later
and stronger spin-up provided by mass accretion produces significant differences.
Specifically, the core of the accretor retains higher spin at the end of the main
sequence, and a convective layer develops that changes its density profile. Moreover,
the surface of the accretor star is polluted by CNO-processed material donated
by the companion. Our models show effects of mass accretion in binaries that are
not captured in single rotating stellar models. This possibly impacts the further
evolution (either in a binary or as single stars), the final collapse, and the
resulting spin of the compact object.
article_number: '277'
article_processing_charge: No
article_type: original
author:
- first_name: M.
full_name: Renzo, M.
last_name: Renzo
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
citation:
ama: 'Renzo M, Götberg YLL. Evolution of accretor stars in massive binaries: Broader
implications from modeling ζ Ophiuchi. The Astrophysical Journal. 2021;923(2).
doi:10.3847/1538-4357/ac29c5'
apa: 'Renzo, M., & Götberg, Y. L. L. (2021). Evolution of accretor stars in
massive binaries: Broader implications from modeling ζ Ophiuchi. The Astrophysical
Journal. American Astronomical Society. https://doi.org/10.3847/1538-4357/ac29c5'
chicago: 'Renzo, M., and Ylva Louise Linsdotter Götberg. “Evolution of Accretor
Stars in Massive Binaries: Broader Implications from Modeling ζ Ophiuchi.” The
Astrophysical Journal. American Astronomical Society, 2021. https://doi.org/10.3847/1538-4357/ac29c5.'
ieee: 'M. Renzo and Y. L. L. Götberg, “Evolution of accretor stars in massive binaries:
Broader implications from modeling ζ Ophiuchi,” The Astrophysical Journal,
vol. 923, no. 2. American Astronomical Society, 2021.'
ista: 'Renzo M, Götberg YLL. 2021. Evolution of accretor stars in massive binaries:
Broader implications from modeling ζ Ophiuchi. The Astrophysical Journal. 923(2),
277.'
mla: 'Renzo, M., and Ylva Louise Linsdotter Götberg. “Evolution of Accretor Stars
in Massive Binaries: Broader Implications from Modeling ζ Ophiuchi.” The Astrophysical
Journal, vol. 923, no. 2, 277, American Astronomical Society, 2021, doi:10.3847/1538-4357/ac29c5.'
short: M. Renzo, Y.L.L. Götberg, The Astrophysical Journal 923 (2021).
date_created: 2023-08-03T10:10:48Z
date_published: 2021-12-29T00:00:00Z
date_updated: 2023-08-21T11:59:34Z
day: '29'
doi: 10.3847/1538-4357/ac29c5
extern: '1'
external_id:
arxiv:
- '2107.10933'
intvolume: ' 923'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2107.10933
month: '12'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Evolution of accretor stars in massive binaries: Broader implications from
modeling ζ Ophiuchi'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 923
year: '2021'
...
---
_id: '13996'
abstract:
- lang: eng
text: We report the observation of an anomalous nonlinear optical response of the
prototypical three-dimensional topological insulator bismuth selenide through
the process of high-order harmonic generation. We find that the generation efficiency
increases as the laser polarization is changed from linear to elliptical, and
it becomes maximum for circular polarization. With the aid of a microscopic theory
and a detailed analysis of the measured spectra, we reveal that such anomalous
enhancement encodes the characteristic topology of the band structure that originates
from the interplay of strong spin–orbit coupling and time-reversal symmetry protection.
The implications are in ultrafast probing of topological phase transitions, light-field
driven dissipationless electronics, and quantum computation.
article_processing_charge: No
article_type: original
author:
- first_name: Denitsa Rangelova
full_name: Baykusheva, Denitsa Rangelova
id: 71b4d059-2a03-11ee-914d-dfa3beed6530
last_name: Baykusheva
- first_name: Alexis
full_name: Chacón, Alexis
last_name: Chacón
- first_name: Jian
full_name: Lu, Jian
last_name: Lu
- first_name: Trevor P.
full_name: Bailey, Trevor P.
last_name: Bailey
- first_name: Jonathan A.
full_name: Sobota, Jonathan A.
last_name: Sobota
- first_name: Hadas
full_name: Soifer, Hadas
last_name: Soifer
- first_name: Patrick S.
full_name: Kirchmann, Patrick S.
last_name: Kirchmann
- first_name: Costel
full_name: Rotundu, Costel
last_name: Rotundu
- first_name: Ctirad
full_name: Uher, Ctirad
last_name: Uher
- first_name: Tony F.
full_name: Heinz, Tony F.
last_name: Heinz
- first_name: David A.
full_name: Reis, David A.
last_name: Reis
- first_name: Shambhu
full_name: Ghimire, Shambhu
last_name: Ghimire
citation:
ama: Baykusheva DR, Chacón A, Lu J, et al. All-optical probe of three-dimensional
topological insulators based on high-harmonic generation by circularly polarized
laser fields. Nano Letters. 2021;21(21):8970-8978. doi:10.1021/acs.nanolett.1c02145
apa: Baykusheva, D. R., Chacón, A., Lu, J., Bailey, T. P., Sobota, J. A., Soifer,
H., … Ghimire, S. (2021). All-optical probe of three-dimensional topological insulators
based on high-harmonic generation by circularly polarized laser fields. Nano
Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.1c02145
chicago: Baykusheva, Denitsa Rangelova, Alexis Chacón, Jian Lu, Trevor P. Bailey,
Jonathan A. Sobota, Hadas Soifer, Patrick S. Kirchmann, et al. “All-Optical Probe
of Three-Dimensional Topological Insulators Based on High-Harmonic Generation
by Circularly Polarized Laser Fields.” Nano Letters. American Chemical
Society, 2021. https://doi.org/10.1021/acs.nanolett.1c02145.
ieee: D. R. Baykusheva et al., “All-optical probe of three-dimensional topological
insulators based on high-harmonic generation by circularly polarized laser fields,”
Nano Letters, vol. 21, no. 21. American Chemical Society, pp. 8970–8978,
2021.
ista: Baykusheva DR, Chacón A, Lu J, Bailey TP, Sobota JA, Soifer H, Kirchmann PS,
Rotundu C, Uher C, Heinz TF, Reis DA, Ghimire S. 2021. All-optical probe of three-dimensional
topological insulators based on high-harmonic generation by circularly polarized
laser fields. Nano Letters. 21(21), 8970–8978.
mla: Baykusheva, Denitsa Rangelova, et al. “All-Optical Probe of Three-Dimensional
Topological Insulators Based on High-Harmonic Generation by Circularly Polarized
Laser Fields.” Nano Letters, vol. 21, no. 21, American Chemical Society,
2021, pp. 8970–78, doi:10.1021/acs.nanolett.1c02145.
short: D.R. Baykusheva, A. Chacón, J. Lu, T.P. Bailey, J.A. Sobota, H. Soifer, P.S.
Kirchmann, C. Rotundu, C. Uher, T.F. Heinz, D.A. Reis, S. Ghimire, Nano Letters
21 (2021) 8970–8978.
date_created: 2023-08-09T13:09:15Z
date_published: 2021-10-22T00:00:00Z
date_updated: 2023-08-22T07:32:00Z
day: '22'
doi: 10.1021/acs.nanolett.1c02145
extern: '1'
external_id:
arxiv:
- '2109.15291'
pmid:
- '34676752'
intvolume: ' 21'
issue: '21'
keyword:
- Mechanical Engineering
- Condensed Matter Physics
- General Materials Science
- General Chemistry
- Bioengineering
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1021/acs.nanolett.1c02145
month: '10'
oa: 1
oa_version: Published Version
page: 8970-8978
pmid: 1
publication: Nano Letters
publication_identifier:
eissn:
- 1530-6992
issn:
- 1530-6984
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: All-optical probe of three-dimensional topological insulators based on high-harmonic
generation by circularly polarized laser fields
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 21
year: '2021'
...
---
_id: '13997'
abstract:
- lang: eng
text: We investigate theoretically the strong-field regime of light-matter interactions
in the topological-insulator class of quantum materials. In particular, we focus
on the process of nonperturbative high-order harmonic generation from the paradigmatic
three-dimensional topological insulator bismuth selenide (Bi2Se3) subjected to
intense midinfrared laser fields. We analyze the contributions from the spin-orbit-coupled
bulk states and the topological surface bands separately and reveal a major difference
in how their harmonic yields depend on the ellipticity of the laser field. Bulk
harmonics show a monotonic decrease in their yield as the ellipticity increases,
in a manner reminiscent of high harmonic generation in gaseous media. However,
the surface contribution exhibits a highly nontrivial dependence, culminating
with a maximum for circularly polarized fields. We attribute the observed anomalous
behavior to (i) the enhanced amplitude and the circular pattern of the interband
dipole and the Berry connections in the vicinity of the Dirac point and (ii) the
influence of the higher-order, hexagonal warping terms in the Hamiltonian, which
are responsible for the hexagonal deformation of the energy surface at higher
momenta. The latter are associated directly with spin-orbit-coupling parameters.
Our results thus establish the sensitivity of strong-field-driven high harmonic
emission to the topology of the band structure as well as to the manifestations
of spin-orbit interaction.
article_number: '023101'
article_processing_charge: No
article_type: original
author:
- first_name: Denitsa Rangelova
full_name: Baykusheva, Denitsa Rangelova
id: 71b4d059-2a03-11ee-914d-dfa3beed6530
last_name: Baykusheva
- first_name: Alexis
full_name: Chacón, Alexis
last_name: Chacón
- first_name: Dasol
full_name: Kim, Dasol
last_name: Kim
- first_name: Dong Eon
full_name: Kim, Dong Eon
last_name: Kim
- first_name: David A.
full_name: Reis, David A.
last_name: Reis
- first_name: Shambhu
full_name: Ghimire, Shambhu
last_name: Ghimire
citation:
ama: Baykusheva DR, Chacón A, Kim D, Kim DE, Reis DA, Ghimire S. Strong-field physics
in three-dimensional topological insulators. Physical Review A. 2021;103(2).
doi:10.1103/physreva.103.023101
apa: Baykusheva, D. R., Chacón, A., Kim, D., Kim, D. E., Reis, D. A., & Ghimire,
S. (2021). Strong-field physics in three-dimensional topological insulators. Physical
Review A. American Physical Society. https://doi.org/10.1103/physreva.103.023101
chicago: Baykusheva, Denitsa Rangelova, Alexis Chacón, Dasol Kim, Dong Eon Kim,
David A. Reis, and Shambhu Ghimire. “Strong-Field Physics in Three-Dimensional
Topological Insulators.” Physical Review A. American Physical Society,
2021. https://doi.org/10.1103/physreva.103.023101.
ieee: D. R. Baykusheva, A. Chacón, D. Kim, D. E. Kim, D. A. Reis, and S. Ghimire,
“Strong-field physics in three-dimensional topological insulators,” Physical
Review A, vol. 103, no. 2. American Physical Society, 2021.
ista: Baykusheva DR, Chacón A, Kim D, Kim DE, Reis DA, Ghimire S. 2021. Strong-field
physics in three-dimensional topological insulators. Physical Review A. 103(2),
023101.
mla: Baykusheva, Denitsa Rangelova, et al. “Strong-Field Physics in Three-Dimensional
Topological Insulators.” Physical Review A, vol. 103, no. 2, 023101, American
Physical Society, 2021, doi:10.1103/physreva.103.023101.
short: D.R. Baykusheva, A. Chacón, D. Kim, D.E. Kim, D.A. Reis, S. Ghimire, Physical
Review A 103 (2021).
date_created: 2023-08-09T13:09:26Z
date_published: 2021-02-01T00:00:00Z
date_updated: 2023-08-22T07:33:43Z
day: '01'
doi: 10.1103/physreva.103.023101
extern: '1'
external_id:
arxiv:
- '2008.01265'
intvolume: ' 103'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2008.01265
month: '02'
oa: 1
oa_version: Preprint
publication: Physical Review A
publication_identifier:
eissn:
- 2469-9934
issn:
- 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Strong-field physics in three-dimensional topological insulators
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 103
year: '2021'
...
---
_id: '13995'
abstract:
- lang: eng
text: Shape resonances play a central role in many areas of science, but the real-time
measurement of the associated many-body dynamics remains challenging. Here, we
present measurements of recoil frame angle-resolved photoionization delays in
the vicinity of shape resonances of CF4. This technique provides insights into
the spatiotemporal photoionization dynamics of molecular shape resonances. We
find delays of up to ∼600 as in the ionization out of the highest occupied molecular
orbital (HOMO) with a strong dependence on the emission direction and a pronounced
asymmetry along the dissociation axis. Comparison with quantum-scattering calculations
traces the asymmetries to the interference of a small subset of partial waves
at low kinetic energies and, additionally, to the interference of two overlapping
shape resonances in the HOMO-1 channel. Our experimental and theoretical results
establish a broadly applicable approach to space- and time-resolved photoionization
dynamics in the molecular frame.
article_number: abj8121
article_processing_charge: No
article_type: original
author:
- first_name: Saijoscha
full_name: Heck, Saijoscha
last_name: Heck
- first_name: Denitsa Rangelova
full_name: Baykusheva, Denitsa Rangelova
id: 71b4d059-2a03-11ee-914d-dfa3beed6530
last_name: Baykusheva
- first_name: Meng
full_name: Han, Meng
last_name: Han
- first_name: Jia-Bao
full_name: Ji, Jia-Bao
last_name: Ji
- first_name: Conaill
full_name: Perry, Conaill
last_name: Perry
- first_name: Xiaochun
full_name: Gong, Xiaochun
last_name: Gong
- first_name: Hans Jakob
full_name: Wörner, Hans Jakob
last_name: Wörner
citation:
ama: Heck S, Baykusheva DR, Han M, et al. Attosecond interferometry of shape resonances
in the recoil frame of CF4. Science Advances. 2021;7(49). doi:10.1126/sciadv.abj8121
apa: Heck, S., Baykusheva, D. R., Han, M., Ji, J.-B., Perry, C., Gong, X., &
Wörner, H. J. (2021). Attosecond interferometry of shape resonances in the recoil
frame of CF4. Science Advances. American Association for the Advancement
of Science. https://doi.org/10.1126/sciadv.abj8121
chicago: Heck, Saijoscha, Denitsa Rangelova Baykusheva, Meng Han, Jia-Bao Ji, Conaill
Perry, Xiaochun Gong, and Hans Jakob Wörner. “Attosecond Interferometry of Shape
Resonances in the Recoil Frame of CF4.” Science Advances. American Association
for the Advancement of Science, 2021. https://doi.org/10.1126/sciadv.abj8121.
ieee: S. Heck et al., “Attosecond interferometry of shape resonances in the
recoil frame of CF4,” Science Advances, vol. 7, no. 49. American Association
for the Advancement of Science, 2021.
ista: Heck S, Baykusheva DR, Han M, Ji J-B, Perry C, Gong X, Wörner HJ. 2021. Attosecond
interferometry of shape resonances in the recoil frame of CF4. Science Advances.
7(49), abj8121.
mla: Heck, Saijoscha, et al. “Attosecond Interferometry of Shape Resonances in the
Recoil Frame of CF4.” Science Advances, vol. 7, no. 49, abj8121, American
Association for the Advancement of Science, 2021, doi:10.1126/sciadv.abj8121.
short: S. Heck, D.R. Baykusheva, M. Han, J.-B. Ji, C. Perry, X. Gong, H.J. Wörner,
Science Advances 7 (2021).
date_created: 2023-08-09T13:09:02Z
date_published: 2021-12-03T00:00:00Z
date_updated: 2023-08-22T07:30:25Z
day: '03'
doi: 10.1126/sciadv.abj8121
extern: '1'
external_id:
pmid:
- '34860540'
intvolume: ' 7'
issue: '49'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1126/sciadv.abj8121
month: '12'
oa: 1
oa_version: Published Version
pmid: 1
publication: Science Advances
publication_identifier:
eissn:
- 2375-2548
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Attosecond interferometry of shape resonances in the recoil frame of CF4
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7
year: '2021'
...
---
_id: '14097'
abstract:
- lang: eng
text: UVEX is a proposed medium class Explorer mission designed to provide crucial
missing capabilities that will address objectives central to a broad range of
modern astrophysics. The UVEX design has two co-aligned wide-field imagers operating
in the FUV and NUV and a powerful broadband medium resolution spectrometer. In
its two-year baseline mission, UVEX will perform a multi-cadence synoptic all-sky
survey 50/100 times deeper than GALEX in the NUV/FUV, cadenced surveys of the
Large and Small Magellanic Clouds, rapid target of opportunity followup, as well
as spectroscopic followup of samples of stars and galaxies. The science program
is built around three pillars. First, UVEX will explore the low-mass, low-metallicity
galaxy frontier through imaging and spectroscopic surveys that will probe key
aspects of the evolution of galaxies by understanding how star formation and stellar
evolution at low metallicities affect the growth and evolution of low-metallicity,
low-mass galaxies in the local universe. Such galaxies contain half the mass in
the local universe, and are analogs for the first galaxies, but observed at distances
that make them accessible to detailed study. Second, UVEX will explore the dynamic
universe through time-domain surveys and prompt spectroscopic followup capability
will probe the environments, energetics, and emission processes in the early aftermaths
of gravitational wave-discovered compact object mergers, discover hot, fast UV
transients, and diagnose the early stages of stellar explosions. Finally, UVEX
will become a key community resource by leaving a large all-sky legacy data set,
enabling a wide range of scientific studies and filling a gap in the new generation
of wide-field, sensitive optical and infrared surveys provided by the Rubin, Euclid,
and Roman observatories. This paper discusses the scientific potential of UVEX,
and the broad scientific program.
article_number: '2111.15608'
article_processing_charge: No
author:
- first_name: S. R.
full_name: Kulkarni, S. R.
last_name: Kulkarni
- first_name: Fiona A.
full_name: Harrison, Fiona A.
last_name: Harrison
- first_name: Brian W.
full_name: Grefenstette, Brian W.
last_name: Grefenstette
- first_name: Hannah P.
full_name: Earnshaw, Hannah P.
last_name: Earnshaw
- first_name: Igor
full_name: Andreoni, Igor
last_name: Andreoni
- first_name: Danielle A.
full_name: Berg, Danielle A.
last_name: Berg
- first_name: Joshua S.
full_name: Bloom, Joshua S.
last_name: Bloom
- first_name: S. Bradley
full_name: Cenko, S. Bradley
last_name: Cenko
- first_name: Ryan
full_name: Chornock, Ryan
last_name: Chornock
- first_name: Jessie L.
full_name: Christiansen, Jessie L.
last_name: Christiansen
- first_name: Michael W.
full_name: Coughlin, Michael W.
last_name: Coughlin
- first_name: Alexander Wuollet
full_name: Criswell, Alexander Wuollet
last_name: Criswell
- first_name: Behnam
full_name: Darvish, Behnam
last_name: Darvish
- first_name: Kaustav K.
full_name: Das, Kaustav K.
last_name: Das
- first_name: Kishalay
full_name: De, Kishalay
last_name: De
- first_name: Luc
full_name: Dessart, Luc
last_name: Dessart
- first_name: Don
full_name: Dixon, Don
last_name: Dixon
- first_name: Bas
full_name: Dorsman, Bas
last_name: Dorsman
- first_name: Kareem El-Badry
full_name: Kareem El-Badry, Kareem El-Badry
last_name: Kareem El-Badry
- first_name: Christopher
full_name: Evans, Christopher
last_name: Evans
- first_name: K. E. Saavik
full_name: Ford, K. E. Saavik
last_name: Ford
- first_name: Christoffer
full_name: Fremling, Christoffer
last_name: Fremling
- first_name: Boris T.
full_name: Gansicke, Boris T.
last_name: Gansicke
- first_name: Suvi
full_name: Gezari, Suvi
last_name: Gezari
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: Gregory M.
full_name: Green, Gregory M.
last_name: Green
- first_name: Matthew J.
full_name: Graham, Matthew J.
last_name: Graham
- first_name: Marianne
full_name: Heida, Marianne
last_name: Heida
- first_name: Anna Y. Q.
full_name: Ho, Anna Y. Q.
last_name: Ho
- first_name: Amruta D.
full_name: Jaodand, Amruta D.
last_name: Jaodand
- first_name: Christopher M. Johns-Krull
full_name: Christopher M. Johns-Krull, Christopher M. Johns-Krull
last_name: Christopher M. Johns-Krull
- first_name: Mansi M.
full_name: Kasliwal, Mansi M.
last_name: Kasliwal
- first_name: Margaret
full_name: Lazzarini, Margaret
last_name: Lazzarini
- first_name: Wenbin
full_name: Lu, Wenbin
last_name: Lu
- first_name: Raffaella
full_name: Margutti, Raffaella
last_name: Margutti
- first_name: D. Christopher
full_name: Martin, D. Christopher
last_name: Martin
- first_name: Daniel Charles
full_name: Masters, Daniel Charles
last_name: Masters
- first_name: Barry
full_name: McKernan, Barry
last_name: McKernan
- first_name: Yael
full_name: Naze, Yael
last_name: Naze
- first_name: Samaya M.
full_name: Nissanke, Samaya M.
last_name: Nissanke
- first_name: B.
full_name: Parazin, B.
last_name: Parazin
- first_name: Daniel A.
full_name: Perley, Daniel A.
last_name: Perley
- first_name: E. Sterl
full_name: Phinney, E. Sterl
last_name: Phinney
- first_name: Anthony L.
full_name: Piro, Anthony L.
last_name: Piro
- first_name: G.
full_name: Raaijmakers, G.
last_name: Raaijmakers
- first_name: Gregor
full_name: Rauw, Gregor
last_name: Rauw
- first_name: Antonio C.
full_name: Rodriguez, Antonio C.
last_name: Rodriguez
- first_name: Hugues
full_name: Sana, Hugues
last_name: Sana
- first_name: Peter
full_name: Senchyna, Peter
last_name: Senchyna
- first_name: Leo P.
full_name: Singer, Leo P.
last_name: Singer
- first_name: Jessica J.
full_name: Spake, Jessica J.
last_name: Spake
- first_name: Keivan G.
full_name: Stassun, Keivan G.
last_name: Stassun
- first_name: Daniel
full_name: Stern, Daniel
last_name: Stern
- first_name: Harry I.
full_name: Teplitz, Harry I.
last_name: Teplitz
- first_name: Daniel R.
full_name: Weisz, Daniel R.
last_name: Weisz
- first_name: Yuhan
full_name: Yao, Yuhan
last_name: Yao
citation:
ama: Kulkarni SR, Harrison FA, Grefenstette BW, et al. Science with the ultraviolet
explorer (UVEX). arXiv. doi:10.48550/arXiv.2111.15608
apa: Kulkarni, S. R., Harrison, F. A., Grefenstette, B. W., Earnshaw, H. P., Andreoni,
I., Berg, D. A., … Yao, Y. (n.d.). Science with the ultraviolet explorer (UVEX).
arXiv. https://doi.org/10.48550/arXiv.2111.15608
chicago: Kulkarni, S. R., Fiona A. Harrison, Brian W. Grefenstette, Hannah P. Earnshaw,
Igor Andreoni, Danielle A. Berg, Joshua S. Bloom, et al. “Science with the Ultraviolet
Explorer (UVEX).” ArXiv, n.d. https://doi.org/10.48550/arXiv.2111.15608.
ieee: S. R. Kulkarni et al., “Science with the ultraviolet explorer (UVEX),”
arXiv. .
ista: Kulkarni SR, Harrison FA, Grefenstette BW, Earnshaw HP, Andreoni I, Berg DA,
Bloom JS, Cenko SB, Chornock R, Christiansen JL, Coughlin MW, Criswell AW, Darvish
B, Das KK, De K, Dessart L, Dixon D, Dorsman B, Kareem El-Badry KE-B, Evans C,
Ford KES, Fremling C, Gansicke BT, Gezari S, Götberg YLL, Green GM, Graham MJ,
Heida M, Ho AYQ, Jaodand AD, Christopher M. Johns-Krull CMJ-K, Kasliwal MM, Lazzarini
M, Lu W, Margutti R, Martin DC, Masters DC, McKernan B, Naze Y, Nissanke SM, Parazin
B, Perley DA, Phinney ES, Piro AL, Raaijmakers G, Rauw G, Rodriguez AC, Sana H,
Senchyna P, Singer LP, Spake JJ, Stassun KG, Stern D, Teplitz HI, Weisz DR, Yao
Y. Science with the ultraviolet explorer (UVEX). arXiv, 2111.15608.
mla: Kulkarni, S. R., et al. “Science with the Ultraviolet Explorer (UVEX).” ArXiv,
2111.15608, doi:10.48550/arXiv.2111.15608.
short: S.R. Kulkarni, F.A. Harrison, B.W. Grefenstette, H.P. Earnshaw, I. Andreoni,
D.A. Berg, J.S. Bloom, S.B. Cenko, R. Chornock, J.L. Christiansen, M.W. Coughlin,
A.W. Criswell, B. Darvish, K.K. Das, K. De, L. Dessart, D. Dixon, B. Dorsman,
K.E.-B. Kareem El-Badry, C. Evans, K.E.S. Ford, C. Fremling, B.T. Gansicke, S.
Gezari, Y.L.L. Götberg, G.M. Green, M.J. Graham, M. Heida, A.Y.Q. Ho, A.D. Jaodand,
C.M.J.-K. Christopher M. Johns-Krull, M.M. Kasliwal, M. Lazzarini, W. Lu, R. Margutti,
D.C. Martin, D.C. Masters, B. McKernan, Y. Naze, S.M. Nissanke, B. Parazin, D.A.
Perley, E.S. Phinney, A.L. Piro, G. Raaijmakers, G. Rauw, A.C. Rodriguez, H. Sana,
P. Senchyna, L.P. Singer, J.J. Spake, K.G. Stassun, D. Stern, H.I. Teplitz, D.R.
Weisz, Y. Yao, ArXiv (n.d.).
date_created: 2023-08-21T10:11:00Z
date_published: 2021-11-30T00:00:00Z
date_updated: 2023-08-22T13:15:02Z
day: '30'
doi: 10.48550/arXiv.2111.15608
extern: '1'
external_id:
arxiv:
- '2111.15608'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2111.15608'
month: '11'
oa: 1
oa_version: Preprint
publication: arXiv
publication_status: submitted
status: public
title: Science with the ultraviolet explorer (UVEX)
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '10005'
abstract:
- lang: eng
text: We study systems of nonlinear partial differential equations of parabolic
type, in which the elliptic operator is replaced by the first-order divergence
operator acting on a flux function, which is related to the spatial gradient of
the unknown through an additional implicit equation. This setting, broad enough
in terms of applications, significantly expands the paradigm of nonlinear parabolic
problems. Formulating four conditions concerning the form of the implicit equation,
we first show that these conditions describe a maximal monotone p-coercive graph.
We then establish the global-in-time and large-data existence of a (weak) solution
and its uniqueness. To this end, we adopt and significantly generalize Minty’s
method of monotone mappings. A unified theory, containing several novel tools,
is developed in a way to be tractable from the point of view of numerical approximations.
acknowledgement: "M. Bulíček and J. Málek acknowledge the support of the project No.
18-12719S financed by the Czech\r\nScience foundation (GAČR). E. Maringová acknowledges
support from Charles University Research program \r\nUNCE/SCI/023, the grant SVV-2020-260583
by the Ministry of Education, Youth and Sports, Czech Republic\r\nand from the Austrian
Science Fund (FWF), grants P30000, W1245, and F65. M. Bulíček and J. Málek are\r\nmembers
of the Nečas Center for Mathematical Modelling.\r\n"
article_processing_charge: No
article_type: original
author:
- first_name: Miroslav
full_name: Bulíček, Miroslav
last_name: Bulíček
- first_name: Erika
full_name: Maringová, Erika
id: dbabca31-66eb-11eb-963a-fb9c22c880b4
last_name: Maringová
- first_name: Josef
full_name: Málek, Josef
last_name: Málek
citation:
ama: Bulíček M, Maringová E, Málek J. On nonlinear problems of parabolic type with
implicit constitutive equations involving flux. Mathematical Models and Methods
in Applied Sciences. 2021;31(09). doi:10.1142/S0218202521500457
apa: Bulíček, M., Maringová, E., & Málek, J. (2021). On nonlinear problems of
parabolic type with implicit constitutive equations involving flux. Mathematical
Models and Methods in Applied Sciences. World Scientific. https://doi.org/10.1142/S0218202521500457
chicago: Bulíček, Miroslav, Erika Maringová, and Josef Málek. “On Nonlinear Problems
of Parabolic Type with Implicit Constitutive Equations Involving Flux.” Mathematical
Models and Methods in Applied Sciences. World Scientific, 2021. https://doi.org/10.1142/S0218202521500457.
ieee: M. Bulíček, E. Maringová, and J. Málek, “On nonlinear problems of parabolic
type with implicit constitutive equations involving flux,” Mathematical Models
and Methods in Applied Sciences, vol. 31, no. 09. World Scientific, 2021.
ista: Bulíček M, Maringová E, Málek J. 2021. On nonlinear problems of parabolic
type with implicit constitutive equations involving flux. Mathematical Models
and Methods in Applied Sciences. 31(09).
mla: Bulíček, Miroslav, et al. “On Nonlinear Problems of Parabolic Type with Implicit
Constitutive Equations Involving Flux.” Mathematical Models and Methods in
Applied Sciences, vol. 31, no. 09, World Scientific, 2021, doi:10.1142/S0218202521500457.
short: M. Bulíček, E. Maringová, J. Málek, Mathematical Models and Methods in Applied
Sciences 31 (2021).
date_created: 2021-09-12T22:01:25Z
date_published: 2021-08-25T00:00:00Z
date_updated: 2023-09-04T11:43:45Z
day: '25'
department:
- _id: JuFi
doi: 10.1142/S0218202521500457
external_id:
arxiv:
- '2009.06917'
isi:
- '000722222900004'
intvolume: ' 31'
isi: 1
issue: '09'
keyword:
- Nonlinear parabolic systems
- implicit constitutive theory
- weak solutions
- existence
- uniqueness
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2009.06917
month: '08'
oa: 1
oa_version: Preprint
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
grant_number: F6504
name: Taming Complexity in Partial Differential Systems
publication: Mathematical Models and Methods in Applied Sciences
publication_identifier:
eissn:
- 1793-6314
issn:
- 0218-2025
publication_status: published
publisher: World Scientific
quality_controlled: '1'
scopus_import: '1'
status: public
title: On nonlinear problems of parabolic type with implicit constitutive equations
involving flux
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 31
year: '2021'
...
---
_id: '10553'
abstract:
- lang: eng
text: The popularity of permissioned blockchain systems demands BFT SMR protocols
that are efficient under good network conditions (synchrony) and robust under
bad network conditions (asynchrony). The state-of-the-art partially synchronous
BFT SMR protocols provide optimal linear communication cost per decision under
synchrony and good leaders, but lose liveness under asynchrony. On the other hand,
the state-of-the-art asynchronous BFT SMR protocols are live even under asynchrony,
but always pay quadratic cost even under synchrony. In this paper, we propose
a BFT SMR protocol that achieves the best of both worlds -- optimal linear cost
per decision under good networks and leaders, optimal quadratic cost per decision
under bad networks, and remains always live.
article_processing_charge: No
author:
- first_name: Rati
full_name: Gelashvili, Rati
last_name: Gelashvili
- first_name: Eleftherios
full_name: Kokoris Kogias, Eleftherios
id: f5983044-d7ef-11ea-ac6d-fd1430a26d30
last_name: Kokoris Kogias
- first_name: Alexander
full_name: Spiegelman, Alexander
last_name: Spiegelman
- first_name: Zhuolun
full_name: Xiang, Zhuolun
last_name: Xiang
citation:
ama: 'Gelashvili R, Kokoris Kogias E, Spiegelman A, Xiang Z. Brief announcement:
Be prepared when network goes bad: An asynchronous view-change protocol. In: Proceedings
of the 2021 ACM Symposium on Principles of Distributed Computing. Association
for Computing Machinery; 2021:187-190. doi:10.1145/3465084.3467941'
apa: 'Gelashvili, R., Kokoris Kogias, E., Spiegelman, A., & Xiang, Z. (2021).
Brief announcement: Be prepared when network goes bad: An asynchronous view-change
protocol. In Proceedings of the 2021 ACM Symposium on Principles of Distributed
Computing (pp. 187–190). Virtual, Italy: Association for Computing Machinery.
https://doi.org/10.1145/3465084.3467941'
chicago: 'Gelashvili, Rati, Eleftherios Kokoris Kogias, Alexander Spiegelman, and
Zhuolun Xiang. “Brief Announcement: Be Prepared When Network Goes Bad: An Asynchronous
View-Change Protocol.” In Proceedings of the 2021 ACM Symposium on Principles
of Distributed Computing, 187–90. Association for Computing Machinery, 2021.
https://doi.org/10.1145/3465084.3467941.'
ieee: 'R. Gelashvili, E. Kokoris Kogias, A. Spiegelman, and Z. Xiang, “Brief announcement:
Be prepared when network goes bad: An asynchronous view-change protocol,” in Proceedings
of the 2021 ACM Symposium on Principles of Distributed Computing, Virtual,
Italy, 2021, pp. 187–190.'
ista: 'Gelashvili R, Kokoris Kogias E, Spiegelman A, Xiang Z. 2021. Brief announcement:
Be prepared when network goes bad: An asynchronous view-change protocol. Proceedings
of the 2021 ACM Symposium on Principles of Distributed Computing. PODC: Principles
of Distributed Computing, 187–190.'
mla: 'Gelashvili, Rati, et al. “Brief Announcement: Be Prepared When Network Goes
Bad: An Asynchronous View-Change Protocol.” Proceedings of the 2021 ACM Symposium
on Principles of Distributed Computing, Association for Computing Machinery,
2021, pp. 187–90, doi:10.1145/3465084.3467941.'
short: R. Gelashvili, E. Kokoris Kogias, A. Spiegelman, Z. Xiang, in:, Proceedings
of the 2021 ACM Symposium on Principles of Distributed Computing, Association
for Computing Machinery, 2021, pp. 187–190.
conference:
end_date: 2021-07-30
location: Virtual, Italy
name: 'PODC: Principles of Distributed Computing'
start_date: 2021-07-26
date_created: 2021-12-16T13:20:19Z
date_published: 2021-07-21T00:00:00Z
date_updated: 2023-09-04T11:42:10Z
day: '21'
department:
- _id: ElKo
doi: 10.1145/3465084.3467941
external_id:
arxiv:
- '2103.03181'
isi:
- '000744439800018'
isi: 1
keyword:
- optimal
- state machine replication
- fallback
- asynchrony
- byzantine faults
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2103.03181
month: '07'
oa: 1
oa_version: Preprint
page: 187-190
publication: Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing
publication_identifier:
isbn:
- 9-781-4503-8548-0
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Brief announcement: Be prepared when network goes bad: An asynchronous view-change
protocol'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...