---
_id: '1299'
abstract:
- lang: eng
text: Recent experiments have shown that motion detection in Drosophila starts with
splitting the visual input into two parallel channels encoding brightness increments
(ON) or decrements (OFF). This suggests the existence of either two (ON-ON, OFF-OFF)
or four (for all pairwise interactions) separate motion detectors. To decide between
these possibilities, we stimulated flies using sequences of ON and OFF brightness
pulses while recording from motion-sensitive tangential cells. We found direction-selective
responses to sequences of same sign (ON-ON, OFF-OFF), but not of opposite sign
(ON-OFF, OFF-ON), refuting the existence of four separate detectors. Based on
further measurements, we propose a model that reproduces a variety of additional
experimental data sets, including ones that were previously interpreted as support
for four separate detectors. Our experiments and the derived model mark an important
step in guiding further dissection of the fly motion detection circuit.
author:
- first_name: Hubert
full_name: Eichner, Hubert
last_name: Eichner
- first_name: Maximilian A
full_name: Maximilian Jösch
id: 2BD278E6-F248-11E8-B48F-1D18A9856A87
last_name: Jösch
orcid: 0000-0002-3937-1330
- first_name: Bettina
full_name: Schnell, Bettina
last_name: Schnell
- first_name: Dierk
full_name: Reiff, Dierk F
last_name: Reiff
- first_name: Alexander
full_name: Borst, Alexander
last_name: Borst
citation:
ama: Eichner H, Jösch MA, Schnell B, Reiff D, Borst A. Internal structure of the
fly elementary motion detector. Neuron. 2011;70(6):1155-1164. doi:10.1016/j.neuron.2011.03.028
apa: Eichner, H., Jösch, M. A., Schnell, B., Reiff, D., & Borst, A. (2011).
Internal structure of the fly elementary motion detector. Neuron. Elsevier.
https://doi.org/10.1016/j.neuron.2011.03.028
chicago: Eichner, Hubert, Maximilian A Jösch, Bettina Schnell, Dierk Reiff, and
Alexander Borst. “Internal Structure of the Fly Elementary Motion Detector.” Neuron.
Elsevier, 2011. https://doi.org/10.1016/j.neuron.2011.03.028.
ieee: H. Eichner, M. A. Jösch, B. Schnell, D. Reiff, and A. Borst, “Internal structure
of the fly elementary motion detector,” Neuron, vol. 70, no. 6. Elsevier,
pp. 1155–1164, 2011.
ista: Eichner H, Jösch MA, Schnell B, Reiff D, Borst A. 2011. Internal structure
of the fly elementary motion detector. Neuron. 70(6), 1155–1164.
mla: Eichner, Hubert, et al. “Internal Structure of the Fly Elementary Motion Detector.”
Neuron, vol. 70, no. 6, Elsevier, 2011, pp. 1155–64, doi:10.1016/j.neuron.2011.03.028.
short: H. Eichner, M.A. Jösch, B. Schnell, D. Reiff, A. Borst, Neuron 70 (2011)
1155–1164.
date_created: 2018-12-11T11:51:14Z
date_published: 2011-06-23T00:00:00Z
date_updated: 2021-01-12T06:49:43Z
day: '23'
doi: 10.1016/j.neuron.2011.03.028
extern: 1
intvolume: ' 70'
issue: '6'
month: '06'
page: 1155 - 1164
publication: Neuron
publication_status: published
publisher: Elsevier
publist_id: '5969'
quality_controlled: 0
status: public
title: Internal structure of the fly elementary motion detector
type: journal_article
volume: 70
year: '2011'
...
---
_id: '1467'
abstract:
- lang: eng
text: We propose a general conjecture for the mixed Hodge polynomial of the generic
character varieties of representations of the fundamental group of a Riemann surface
of genus g to GLn(C) with fixed generic semisimple conjugacy classes at k punctures.
This conjecture generalizes the Cauchy identity for Macdonald polynomials and
is a common generalization of two formulas that we prove in this paper. The first
is a formula for the E-polynomial of these character varieties which we obtain
using the character table of GLn(Fq). We use this formula to compute the Euler
characteristic of character varieties. The second formula gives the Poincaré polynomial
of certain associated quiver varieties which we obtain using the character table
of gln(Fq). In the last main result we prove that the Poincaré polynomials of
the quiver varieties equal certain multiplicities in the tensor product of irreducible
characters of GLn(Fq). As a consequence we find a curious connection between Kac-Moody
algebras associated with comet-shaped, and typically wild, quivers and the representation
theory of GLn(Fq).
acknowledgement: |-
Hausel’s work was supported by National Science Foundation grants DMS-0305505 and DMS-0604775, by an Alfred Sloan Fellowship, and by a Royal Society University Research Fellowship. Letellier’s work supported by Agence Nationale de la Recherche grant ANR-09-JCJC-0102-01.
Rodriguez-Villegas’s work supported by National Science Foundation grant DMS-0200605, by an FRA from the University of Texas at Austin, by EPSRC grant EP/G027110/1, by visiting fellowships at All Souls and Wadham Colleges in Oxford, and by a Research Scholarship from the Clay Mathematical Institute.
author:
- first_name: Tamas
full_name: Tamas Hausel
id: 4A0666D8-F248-11E8-B48F-1D18A9856A87
last_name: Hausel
- first_name: Emmanuel
full_name: Letellier, Emmanuel
last_name: Letellier
- first_name: Fernando
full_name: Rodríguez Villegas, Fernando
last_name: Rodríguez Villegas
citation:
ama: Hausel T, Letellier E, Rodríguez Villegas F. Arithmetic harmonic analysis on
character and quiver varieties. Duke Mathematical Journal. 2011;160(2):323-400.
doi:10.1215/00127094-1444258
apa: Hausel, T., Letellier, E., & Rodríguez Villegas, F. (2011). Arithmetic
harmonic analysis on character and quiver varieties. Duke Mathematical Journal.
Duke University Press. https://doi.org/10.1215/00127094-1444258
chicago: Hausel, Tamás, Emmanuel Letellier, and Fernando Rodríguez Villegas. “Arithmetic
Harmonic Analysis on Character and Quiver Varieties.” Duke Mathematical Journal.
Duke University Press, 2011. https://doi.org/10.1215/00127094-1444258.
ieee: T. Hausel, E. Letellier, and F. Rodríguez Villegas, “Arithmetic harmonic analysis
on character and quiver varieties,” Duke Mathematical Journal, vol. 160,
no. 2. Duke University Press, pp. 323–400, 2011.
ista: Hausel T, Letellier E, Rodríguez Villegas F. 2011. Arithmetic harmonic analysis
on character and quiver varieties. Duke Mathematical Journal. 160(2), 323–400.
mla: Hausel, Tamás, et al. “Arithmetic Harmonic Analysis on Character and Quiver
Varieties.” Duke Mathematical Journal, vol. 160, no. 2, Duke University
Press, 2011, pp. 323–400, doi:10.1215/00127094-1444258.
short: T. Hausel, E. Letellier, F. Rodríguez Villegas, Duke Mathematical Journal
160 (2011) 323–400.
date_created: 2018-12-11T11:52:11Z
date_published: 2011-01-01T00:00:00Z
date_updated: 2021-01-12T06:50:56Z
day: '01'
doi: 10.1215/00127094-1444258
extern: 1
intvolume: ' 160'
issue: '2'
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/0810.2076
month: '01'
oa: 1
page: 323 - 400
publication: Duke Mathematical Journal
publication_status: published
publisher: Duke University Press
publist_id: '5728'
quality_controlled: 0
status: public
title: Arithmetic harmonic analysis on character and quiver varieties
type: journal_article
volume: 160
year: '2011'
...
---
_id: '1723'
abstract:
- lang: eng
text: The emergence of differences in the arrangement of cells is the first step
towards the establishment of many organs. Understanding this process is limited
by the lack of systematic characterization of epithelial organisation. Here we
apply network theory at the scale of individual cells to uncover patterns in cell-to-cell
contacts that govern epithelial organisation. We provide an objective characterisation
of epithelia using network representation, where cells are nodes and cell contacts
are links. The features of individual cells, together with attributes of the cellular
network, produce a defining signature that distinguishes epithelia from different
organs, species, developmental stages and genetic conditions. The approach permits
characterization, quantification and classification of normal and perturbed epithelia,
and establishes a framework for understanding molecular mechanisms that underpin
the architecture of complex tissues.
acknowledgement: We acknowledge the MRC for funding, M.M.B. acknowledges Darwin College,
EMBO YIP and Schlumberger Ltd for support. L.M.E. is funded by the Marie Curie and
the EMBO fellowships. L.d.F.C. is grateful to FAPESP (05/00587-5) and CNPq (301303/06-1)
for financial support. Part of this work was performed during a Visiting Scholarship
to L.d.F.C. from St Catharine's College, University of Cambridge. J.B. is supported
by the MRC (UK) and A.K. by a FEBS fellowship
author:
- first_name: Luis
full_name: Escudero, Luis M
last_name: Escudero
- first_name: Luciano
full_name: Costa, Luciano
last_name: Costa
- first_name: Anna
full_name: Anna Kicheva
id: 3959A2A0-F248-11E8-B48F-1D18A9856A87
last_name: Kicheva
orcid: 0000-0003-4509-4998
- first_name: James
full_name: Briscoe, James
last_name: Briscoe
- first_name: Matthew
full_name: Freeman, Matthew
last_name: Freeman
- first_name: Madan
full_name: Babu, Madan M
last_name: Babu
citation:
ama: Escudero L, Costa L, Kicheva A, Briscoe J, Freeman M, Babu M. Epithelial organisation
revealed by a network of cellular contacts. Nature Communications. 2011;2(1).
doi:10.1038/ncomms1536
apa: Escudero, L., Costa, L., Kicheva, A., Briscoe, J., Freeman, M., & Babu,
M. (2011). Epithelial organisation revealed by a network of cellular contacts.
Nature Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms1536
chicago: Escudero, Luis, Luciano Costa, Anna Kicheva, James Briscoe, Matthew Freeman,
and Madan Babu. “Epithelial Organisation Revealed by a Network of Cellular Contacts.”
Nature Communications. Nature Publishing Group, 2011. https://doi.org/10.1038/ncomms1536.
ieee: L. Escudero, L. Costa, A. Kicheva, J. Briscoe, M. Freeman, and M. Babu, “Epithelial
organisation revealed by a network of cellular contacts,” Nature Communications,
vol. 2, no. 1. Nature Publishing Group, 2011.
ista: Escudero L, Costa L, Kicheva A, Briscoe J, Freeman M, Babu M. 2011. Epithelial
organisation revealed by a network of cellular contacts. Nature Communications.
2(1).
mla: Escudero, Luis, et al. “Epithelial Organisation Revealed by a Network of Cellular
Contacts.” Nature Communications, vol. 2, no. 1, Nature Publishing Group,
2011, doi:10.1038/ncomms1536.
short: L. Escudero, L. Costa, A. Kicheva, J. Briscoe, M. Freeman, M. Babu, Nature
Communications 2 (2011).
date_created: 2018-12-11T11:53:40Z
date_published: 2011-01-01T00:00:00Z
date_updated: 2021-01-12T06:52:46Z
day: '01'
doi: 10.1038/ncomms1536
extern: 1
intvolume: ' 2'
issue: '1'
month: '01'
publication: Nature Communications
publication_status: published
publisher: Nature Publishing Group
publist_id: '5405'
quality_controlled: 0
status: public
title: Epithelial organisation revealed by a network of cellular contacts
type: journal_article
volume: 2
year: '2011'
...
---
_id: '1724'
abstract:
- lang: eng
text: Morphogens, such as Decapentaplegic (Dpp) in the fly imaginal discs, form
graded concentration profiles that control patterning and growth of developing
organs. In the imaginal discs, proliferative growth is homogeneous in space, posing
the conundrum of how morphogen concentration gradients could control position-independent
growth. To understand the mechanism of proliferation control by the Dpp gradient,
we quantified Dpp concentration and signaling levels during wing disc growth.
Both Dpp concentration and signaling gradients scale with tissue size during development.
On average, cells divide when Dpp signaling levels have increased by 50%. Our
observations are consistent with a growth control mechanism based on temporal
changes of cellular morphogen signaling levels. For a scaling gradient, this mechanism
generates position-independent growth rates.
acknowledgement: P.M., T.B., and F.J. were supported by the Max-Planck-Gesellschaft.
O.W., A.K., C.S., and M.G.-G. were supported by Geneva University and by European
Research Council advanced investigator grant (SARA), SystemsX (LipidX), Swiss National
Science Foundation (SNF), National Centre of Competence in Research (NCCR) chemical
biology and Frontiers in Genetics and R'equip grants
author:
- first_name: Ortrud
full_name: Wartlick, Ortrud
last_name: Wartlick
- first_name: Peer
full_name: Mumcu, Peer
last_name: Mumcu
- first_name: Anna
full_name: Anna Kicheva
id: 3959A2A0-F248-11E8-B48F-1D18A9856A87
last_name: Kicheva
orcid: 0000-0003-4509-4998
- first_name: Thomas
full_name: Bittig, Thomas
last_name: Bittig
- first_name: Carole
full_name: Seum, Carole
last_name: Seum
- first_name: Frank
full_name: Jülicher, Frank
last_name: Jülicher
- first_name: Marcos
full_name: González-Gaitán, Marcos A
last_name: González Gaitán
citation:
ama: Wartlick O, Mumcu P, Kicheva A, et al. Dynamics of Dpp signaling and proliferation
control. Science. 2011;331(6021):1154-1159. doi:10.1126/science.1200037
apa: Wartlick, O., Mumcu, P., Kicheva, A., Bittig, T., Seum, C., Jülicher, F., &
González Gaitán, M. (2011). Dynamics of Dpp signaling and proliferation control.
Science. American Association for the Advancement of Science. https://doi.org/10.1126/science.1200037
chicago: Wartlick, Ortrud, Peer Mumcu, Anna Kicheva, Thomas Bittig, Carole Seum,
Frank Jülicher, and Marcos González Gaitán. “Dynamics of Dpp Signaling and Proliferation
Control.” Science. American Association for the Advancement of Science,
2011. https://doi.org/10.1126/science.1200037.
ieee: O. Wartlick et al., “Dynamics of Dpp signaling and proliferation control,”
Science, vol. 331, no. 6021. American Association for the Advancement of
Science, pp. 1154–1159, 2011.
ista: Wartlick O, Mumcu P, Kicheva A, Bittig T, Seum C, Jülicher F, González Gaitán
M. 2011. Dynamics of Dpp signaling and proliferation control. Science. 331(6021),
1154–1159.
mla: Wartlick, Ortrud, et al. “Dynamics of Dpp Signaling and Proliferation Control.”
Science, vol. 331, no. 6021, American Association for the Advancement of
Science, 2011, pp. 1154–59, doi:10.1126/science.1200037.
short: O. Wartlick, P. Mumcu, A. Kicheva, T. Bittig, C. Seum, F. Jülicher, M. González
Gaitán, Science 331 (2011) 1154–1159.
date_created: 2018-12-11T11:53:40Z
date_published: 2011-03-04T00:00:00Z
date_updated: 2021-01-12T06:52:46Z
day: '04'
doi: 10.1126/science.1200037
extern: 1
intvolume: ' 331'
issue: '6021'
month: '03'
page: 1154 - 1159
publication: Science
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '5406'
quality_controlled: 0
status: public
title: Dynamics of Dpp signaling and proliferation control
type: journal_article
volume: 331
year: '2011'
...
---
_id: '1754'
abstract:
- lang: eng
text: 'We report on a technique enabling electrical control of the contact silicidation
process in silicon nanowire devices. Undoped silicon nanowires were contacted
by pairs of nickel electrodes and each contact was selectively silicided by means
of the Joule effect. By a realtime monitoring of the nanowire electrical resistance
during the contact silicidation process we were able to fabricate nickel-silicide/silicon/nickel-
silicide devices with controlled silicon channel length down to 8 nm. '
acknowledgement: This work was supported by the Agence Nationale de la Recherche (ANR)
through the ACCESS and COHESION projects and by the European Commission through
the Chemtronics program MEST-CT-2005-020513
author:
- first_name: Massimo
full_name: Mongillo, Massimo
last_name: Mongillo
- first_name: Panayotis
full_name: Spathis, Panayotis
last_name: Spathis
- first_name: Georgios
full_name: Katsaros, Georgios
id: 38DB5788-F248-11E8-B48F-1D18A9856A87
last_name: Katsaros
- first_name: Pascal
full_name: Gentile, Pascal
last_name: Gentile
- first_name: Marc
full_name: Sanquer, Marc
last_name: Sanquer
- first_name: Silvano
full_name: De Franceschi, Silvano
last_name: De Franceschi
citation:
ama: Mongillo M, Spathis P, Katsaros G, Gentile P, Sanquer M, De Franceschi S. Joule-assisted
silicidation for short-channel silicon nanowire devices. ACS Nano. 2011;5(9):7117-7123.
doi:10.1021/nn202524j
apa: Mongillo, M., Spathis, P., Katsaros, G., Gentile, P., Sanquer, M., & De
Franceschi, S. (2011). Joule-assisted silicidation for short-channel silicon nanowire
devices. ACS Nano. American Chemical Society. https://doi.org/10.1021/nn202524j
chicago: Mongillo, Massimo, Panayotis Spathis, Georgios Katsaros, Pascal Gentile,
Marc Sanquer, and Silvano De Franceschi. “Joule-Assisted Silicidation for Short-Channel
Silicon Nanowire Devices.” ACS Nano. American Chemical Society, 2011. https://doi.org/10.1021/nn202524j.
ieee: M. Mongillo, P. Spathis, G. Katsaros, P. Gentile, M. Sanquer, and S. De Franceschi,
“Joule-assisted silicidation for short-channel silicon nanowire devices,” ACS
Nano, vol. 5, no. 9. American Chemical Society, pp. 7117–7123, 2011.
ista: Mongillo M, Spathis P, Katsaros G, Gentile P, Sanquer M, De Franceschi S.
2011. Joule-assisted silicidation for short-channel silicon nanowire devices.
ACS Nano. 5(9), 7117–7123.
mla: Mongillo, Massimo, et al. “Joule-Assisted Silicidation for Short-Channel Silicon
Nanowire Devices.” ACS Nano, vol. 5, no. 9, American Chemical Society,
2011, pp. 7117–23, doi:10.1021/nn202524j.
short: M. Mongillo, P. Spathis, G. Katsaros, P. Gentile, M. Sanquer, S. De Franceschi,
ACS Nano 5 (2011) 7117–7123.
date_created: 2018-12-11T11:53:50Z
date_published: 2011-09-27T00:00:00Z
date_updated: 2021-01-12T06:52:59Z
day: '27'
doi: 10.1021/nn202524j
extern: '1'
external_id:
arxiv:
- '1110.5668'
intvolume: ' 5'
issue: '9'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1110.5668
month: '09'
oa: 1
oa_version: Preprint
page: 7117 - 7123
publication: ACS Nano
publication_status: published
publisher: American Chemical Society
publist_id: '5370'
quality_controlled: '1'
status: public
title: Joule-assisted silicidation for short-channel silicon nanowire devices
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2011'
...
---
_id: '1755'
abstract:
- lang: eng
text: Spin-selective tunneling of holes in SiGe nanocrystals contacted by normal-metal
leads is reported. The spin selectivity arises from an interplay of the orbital
effect of the magnetic field with the strong spin-orbit interaction present in
the valence band of the semiconductor. We demonstrate both experimentally and
theoretically that spin-selective tunneling in semiconductor nanostructures can
be achieved without the use of ferromagnetic contacts. The reported effect, which
relies on mixing the light and heavy holes, should be observable in a broad class
of quantum-dot systems formed in semiconductors with a degenerate valence band.
acknowledgement: The work was supported by the Agence Nationale de la Recherche (through
the ACCESS and COHESION projects), U.S. DOE Contract No. DE-FG02-08ER46482 (Yale),
and the Nanosciences Foundation at Grenoble, France. G. K. acknowledges support
from the Deutsche Forschungsgemeinschaft
author:
- first_name: Georgios
full_name: Georgios Katsaros
id: 38DB5788-F248-11E8-B48F-1D18A9856A87
last_name: Katsaros
- first_name: Vitaly
full_name: Golovach, Vitaly N
last_name: Golovach
- first_name: Panayotis
full_name: Spathis, Panayotis N
last_name: Spathis
- first_name: Natalia
full_name: Ares, Natalia
last_name: Ares
- first_name: Mathieu
full_name: Stoffel, Mathieu
last_name: Stoffel
- first_name: Frank
full_name: Fournel, Frank
last_name: Fournel
- first_name: Oliver
full_name: Schmidt, Oliver G
last_name: Schmidt
- first_name: Leonid
full_name: Glazman, Leonid I
last_name: Glazman
- first_name: Silvano
full_name: De Franceschi, Silvano
last_name: De Franceschi
citation:
ama: Katsaros G, Golovach V, Spathis P, et al. Observation of spin-selective tunneling
in sige nanocrystals. Physical Review Letters. 2011;107(24). doi:10.1103/PhysRevLett.107.246601
apa: Katsaros, G., Golovach, V., Spathis, P., Ares, N., Stoffel, M., Fournel, F.,
… De Franceschi, S. (2011). Observation of spin-selective tunneling in sige nanocrystals.
Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.107.246601
chicago: Katsaros, Georgios, Vitaly Golovach, Panayotis Spathis, Natalia Ares, Mathieu
Stoffel, Frank Fournel, Oliver Schmidt, Leonid Glazman, and Silvano De Franceschi.
“Observation of Spin-Selective Tunneling in Sige Nanocrystals.” Physical Review
Letters. American Physical Society, 2011. https://doi.org/10.1103/PhysRevLett.107.246601.
ieee: G. Katsaros et al., “Observation of spin-selective tunneling in sige
nanocrystals,” Physical Review Letters, vol. 107, no. 24. American Physical
Society, 2011.
ista: Katsaros G, Golovach V, Spathis P, Ares N, Stoffel M, Fournel F, Schmidt O,
Glazman L, De Franceschi S. 2011. Observation of spin-selective tunneling in sige
nanocrystals. Physical Review Letters. 107(24).
mla: Katsaros, Georgios, et al. “Observation of Spin-Selective Tunneling in Sige
Nanocrystals.” Physical Review Letters, vol. 107, no. 24, American Physical
Society, 2011, doi:10.1103/PhysRevLett.107.246601.
short: G. Katsaros, V. Golovach, P. Spathis, N. Ares, M. Stoffel, F. Fournel, O.
Schmidt, L. Glazman, S. De Franceschi, Physical Review Letters 107 (2011).
date_created: 2018-12-11T11:53:50Z
date_published: 2011-12-07T00:00:00Z
date_updated: 2021-01-12T06:53:00Z
day: '07'
doi: 10.1103/PhysRevLett.107.246601
extern: 1
intvolume: ' 107'
issue: '24'
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1107.3919
month: '12'
oa: 1
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '5369'
quality_controlled: 0
status: public
title: Observation of spin-selective tunneling in sige nanocrystals
type: journal_article
volume: 107
year: '2011'
...
---
_id: '1776'
abstract:
- lang: eng
text: Superconducting circuits have been successfully established as systems to
prepare and investigate microwave light fields at the quantum level. In contrast
to optical experiments where light is detected using photon counters, microwaves
are usually measured with well developed linear amplifiers. This makes measurements
of correlation functions - one of the important tools in optics - harder to achieve
because they traditionally rely on photon counters and beam splitters. Here, we
demonstrate a system where we can prepare on demand single microwave photons in
a cavity and detect them at the two outputs of the cavity using linear amplifiers.
Together with efficient data processing, this allows us to measure different observables
of the cavity photons, including the first-order correlation function. Using these
techniques we demonstrate cooling of a thermal background field in the cavity.
acknowledgement: Australian National University,Aust. Res. Counc. Cent. Excellence
Quantum-Atom Opt.,Griffith University,Ian Potter Foundation,International Union
of Pure and Applied Physics
alternative_title:
- 'Journal of Physics: Conference Series'
author:
- first_name: Deniz
full_name: Bozyigit, Deniz
last_name: Bozyigit
- first_name: C
full_name: Lang, C
last_name: Lang
- first_name: L.
full_name: Steffen, L. Kraig
last_name: Steffen
- first_name: Johannes M
full_name: Johannes Fink
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: Christopher
full_name: Eichler, Christopher
last_name: Eichler
- first_name: Matthias
full_name: Baur, Matthias P
last_name: Baur
- first_name: R
full_name: Bianchetti, R
last_name: Bianchetti
- first_name: Peter
full_name: Leek, Peter J
last_name: Leek
- first_name: Stefan
full_name: Filipp, Stefan
last_name: Filipp
- first_name: Andreas
full_name: Wallraff, Andreas
last_name: Wallraff
- first_name: Marcus
full_name: Da Silva, Marcus P
last_name: Da Silva
- first_name: Alexandre
full_name: Blais, Alexandre
last_name: Blais
citation:
ama: 'Bozyigit D, Lang C, Steffen L, et al. Correlation measurements of individual
microwave photons emitted from a symmetric cavity. In: Vol 264. IOP Publishing
Ltd.; 2011. doi:10.1088/1742-6596/264/1/012024'
apa: Bozyigit, D., Lang, C., Steffen, L., Fink, J. M., Eichler, C., Baur, M., …
Blais, A. (2011). Correlation measurements of individual microwave photons emitted
from a symmetric cavity (Vol. 264). Presented at the International Conference
on Atomic Physics, IOP Publishing Ltd. https://doi.org/10.1088/1742-6596/264/1/012024
chicago: Bozyigit, Deniz, C Lang, L. Steffen, Johannes M Fink, Christopher Eichler,
Matthias Baur, R Bianchetti, et al. “Correlation Measurements of Individual Microwave
Photons Emitted from a Symmetric Cavity,” Vol. 264. IOP Publishing Ltd., 2011.
https://doi.org/10.1088/1742-6596/264/1/012024.
ieee: D. Bozyigit et al., “Correlation measurements of individual microwave
photons emitted from a symmetric cavity,” presented at the International Conference
on Atomic Physics, 2011, vol. 264, no. 1.
ista: 'Bozyigit D, Lang C, Steffen L, Fink JM, Eichler C, Baur M, Bianchetti R,
Leek P, Filipp S, Wallraff A, Da Silva M, Blais A. 2011. Correlation measurements
of individual microwave photons emitted from a symmetric cavity. International
Conference on Atomic Physics, Journal of Physics: Conference Series, vol. 264.'
mla: Bozyigit, Deniz, et al. Correlation Measurements of Individual Microwave
Photons Emitted from a Symmetric Cavity. Vol. 264, no. 1, IOP Publishing Ltd.,
2011, doi:10.1088/1742-6596/264/1/012024.
short: D. Bozyigit, C. Lang, L. Steffen, J.M. Fink, C. Eichler, M. Baur, R. Bianchetti,
P. Leek, S. Filipp, A. Wallraff, M. Da Silva, A. Blais, in:, IOP Publishing Ltd.,
2011.
conference:
name: International Conference on Atomic Physics
date_created: 2018-12-11T11:53:57Z
date_published: 2011-01-01T00:00:00Z
date_updated: 2019-04-26T07:22:05Z
day: '01'
doi: 10.1088/1742-6596/264/1/012024
extern: 1
intvolume: ' 264'
issue: '1'
month: '01'
publication_status: published
publisher: IOP Publishing Ltd.
publist_id: '5339'
quality_controlled: 0
status: public
title: Correlation measurements of individual microwave photons emitted from a symmetric
cavity
type: conference
volume: 264
year: '2011'
...
---
_id: '1777'
abstract:
- lang: eng
text: A wide range of experiments studying microwave photons localized in superconducting
cavities have made important contributions to our understanding of the quantum
properties of radiation. Propagating microwave photons, however, have so far been
studied much less intensely. Here we present measurements in which we reconstruct
the quantum state of itinerant single photon Fock states and their superposition
with the vacuum by analyzing moments of the measured amplitude distribution up
to fourth order. Using linear amplifiers and quadrature amplitude detectors, we
have developed efficient methods to separate the detected single photon signal
from the noise added by the amplifier. From our measurement data we have also
reconstructed the corresponding Wigner function.
acknowledgement: This work was supported by the European Research Council (ERC) through
a Starting Grant and by ETHZ
article_processing_charge: No
author:
- first_name: Christopher
full_name: Eichler, Christopher
last_name: Eichler
- first_name: Deniz
full_name: Bozyigit, Deniz
last_name: Bozyigit
- first_name: C
full_name: Lang, C
last_name: Lang
- first_name: L.
full_name: Steffen, L.
last_name: Steffen
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: Andreas
full_name: Wallraff, Andreas
last_name: Wallraff
citation:
ama: Eichler C, Bozyigit D, Lang C, Steffen L, Fink JM, Wallraff A. Experimental
state tomography of itinerant single microwave photons. Physical Review Letters.
2011;106(22). doi:10.1103/PhysRevLett.106.220503
apa: Eichler, C., Bozyigit, D., Lang, C., Steffen, L., Fink, J. M., & Wallraff,
A. (2011). Experimental state tomography of itinerant single microwave photons.
Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.106.220503
chicago: Eichler, Christopher, Deniz Bozyigit, C Lang, L. Steffen, Johannes M Fink,
and Andreas Wallraff. “Experimental State Tomography of Itinerant Single Microwave
Photons.” Physical Review Letters. American Physical Society, 2011. https://doi.org/10.1103/PhysRevLett.106.220503.
ieee: C. Eichler, D. Bozyigit, C. Lang, L. Steffen, J. M. Fink, and A. Wallraff,
“Experimental state tomography of itinerant single microwave photons,” Physical
Review Letters, vol. 106, no. 22. American Physical Society, 2011.
ista: Eichler C, Bozyigit D, Lang C, Steffen L, Fink JM, Wallraff A. 2011. Experimental
state tomography of itinerant single microwave photons. Physical Review Letters.
106(22).
mla: Eichler, Christopher, et al. “Experimental State Tomography of Itinerant Single
Microwave Photons.” Physical Review Letters, vol. 106, no. 22, American
Physical Society, 2011, doi:10.1103/PhysRevLett.106.220503.
short: C. Eichler, D. Bozyigit, C. Lang, L. Steffen, J.M. Fink, A. Wallraff, Physical
Review Letters 106 (2011).
date_created: 2018-12-11T11:53:57Z
date_published: 2011-06-01T00:00:00Z
date_updated: 2021-11-16T07:57:13Z
day: '01'
doi: 10.1103/PhysRevLett.106.220503
extern: '1'
intvolume: ' 106'
issue: '22'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1011.6668
month: '06'
oa: 1
oa_version: None
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '5338'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1103/PhysRevLett.106.249901
status: public
title: Experimental state tomography of itinerant single microwave photons
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 106
year: '2011'
...
---
_id: '1778'
abstract:
- lang: eng
text: Creating a train of single photons and monitoring its propagation and interaction
is challenging in most physical systems, as photons generally interact very weakly
with other systems. However, when confining microwave frequency photons in a transmission
line resonator, effective photon-photon interactions can be mediated by qubits
embedded in the resonator. Here, we observe the phenomenon of photon blockade
through second-order correlation function measurements. The experiments clearly
demonstrate antibunching in a continuously pumped source of single microwave photons
measured by using microwave beam splitters, linear amplifiers, and quadrature
amplitude detectors. We also investigate resonance fluorescence and Rayleigh scattering
in Mollow-triplet-like spectra.
acknowledgement: This work was supported by the European Research Council (ERC) through
a Starting Grant and by ETHZ. M. P. d. S. was supported by NSERC. A. B. was supported
by NSERC, CIFAR, and the Alfred P. Sloan Foundation
author:
- first_name: C
full_name: Lang, C
last_name: Lang
- first_name: Deniz
full_name: Bozyigit, Deniz
last_name: Bozyigit
- first_name: Christopher
full_name: Eichler, Christopher
last_name: Eichler
- first_name: L.
full_name: Steffen, L. Kraig
last_name: Steffen
- first_name: Johannes M
full_name: Johannes Fink
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: Abdufarrukh
full_name: Abdumalikov, Abdufarrukh A
last_name: Abdumalikov
- first_name: Matthias
full_name: Baur, Matthias P
last_name: Baur
- first_name: Stefan
full_name: Filipp, Stefan
last_name: Filipp
- first_name: Marcus
full_name: Da Silva, Marcus P
last_name: Da Silva
- first_name: Alexandre
full_name: Blais, Alexandre
last_name: Blais
- first_name: Andreas
full_name: Wallraff, Andreas
last_name: Wallraff
citation:
ama: Lang C, Bozyigit D, Eichler C, et al. Observation of resonant photon blockade
at microwave frequencies using correlation function measurements. Physical
Review Letters. 2011;106(24). doi:10.1103/PhysRevLett.106.243601
apa: Lang, C., Bozyigit, D., Eichler, C., Steffen, L., Fink, J. M., Abdumalikov,
A., … Wallraff, A. (2011). Observation of resonant photon blockade at microwave
frequencies using correlation function measurements. Physical Review Letters.
American Physical Society. https://doi.org/10.1103/PhysRevLett.106.243601
chicago: Lang, C, Deniz Bozyigit, Christopher Eichler, L. Steffen, Johannes M Fink,
Abdufarrukh Abdumalikov, Matthias Baur, et al. “Observation of Resonant Photon
Blockade at Microwave Frequencies Using Correlation Function Measurements.” Physical
Review Letters. American Physical Society, 2011. https://doi.org/10.1103/PhysRevLett.106.243601.
ieee: C. Lang et al., “Observation of resonant photon blockade at microwave
frequencies using correlation function measurements,” Physical Review Letters,
vol. 106, no. 24. American Physical Society, 2011.
ista: Lang C, Bozyigit D, Eichler C, Steffen L, Fink JM, Abdumalikov A, Baur M,
Filipp S, Da Silva M, Blais A, Wallraff A. 2011. Observation of resonant photon
blockade at microwave frequencies using correlation function measurements. Physical
Review Letters. 106(24).
mla: Lang, C., et al. “Observation of Resonant Photon Blockade at Microwave Frequencies
Using Correlation Function Measurements.” Physical Review Letters, vol.
106, no. 24, American Physical Society, 2011, doi:10.1103/PhysRevLett.106.243601.
short: C. Lang, D. Bozyigit, C. Eichler, L. Steffen, J.M. Fink, A. Abdumalikov,
M. Baur, S. Filipp, M. Da Silva, A. Blais, A. Wallraff, Physical Review Letters
106 (2011).
date_created: 2018-12-11T11:53:57Z
date_published: 2011-06-15T00:00:00Z
date_updated: 2021-01-12T06:53:08Z
day: '15'
doi: 10.1103/PhysRevLett.106.243601
extern: 1
intvolume: ' 106'
issue: '24'
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1102.0461
month: '06'
oa: 1
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '5336'
quality_controlled: 0
status: public
title: Observation of resonant photon blockade at microwave frequencies using correlation
function measurements
type: journal_article
volume: 106
year: '2011'
...
---
_id: '1775'
abstract:
- lang: eng
text: At optical frequencies the radiation produced by a source, such as a laser,
a black body or a single-photon emitter, is frequently characterized by analysing
the temporal correlations of emitted photons using single-photon counters. At
microwave frequencies, however, there are no efficient single-photon counters
yet. Instead, well-developed linear amplifiers allow for efficient measurement
of the amplitude of an electromagnetic field. Here, we demonstrate first- and
second-order correlation function measurements of a pulsed microwave-frequency
single-photon source integrated on the same chip with a 50/50 beam splitter followed
by linear amplifiers and quadrature amplitude detectors. We clearly observe single-photon
coherence in first-order and photon antibunching in second-order correlation function
measurements of the propagating fields.
acknowledgement: This work was supported by the European Research Council (ERC) through
a Starting Grant and by ETHZ. M.P.d.S. was supported by a NSERC postdoctoral fellowship.
A.B. was supported by NSERC, CIFAR and the Alfred P. Sloan Foundation
author:
- first_name: Deniz
full_name: Bozyigit, Deniz
last_name: Bozyigit
- first_name: C
full_name: Lang, C
last_name: Lang
- first_name: L.
full_name: Steffen, L. Kraig
last_name: Steffen
- first_name: Johannes M
full_name: Johannes Fink
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: Christopher
full_name: Eichler, Christopher
last_name: Eichler
- first_name: Matthias
full_name: Baur, Matthias P
last_name: Baur
- first_name: R
full_name: Bianchetti, R
last_name: Bianchetti
- first_name: Peter
full_name: Leek, Peter J
last_name: Leek
- first_name: Stefan
full_name: Filipp, Stefan
last_name: Filipp
- first_name: Marcus
full_name: Da Silva, Marcus P
last_name: Da Silva
- first_name: Alexandre
full_name: Blais, Alexandre
last_name: Blais
- first_name: Andreas
full_name: Wallraff, Andreas
last_name: Wallraff
citation:
ama: Bozyigit D, Lang C, Steffen L, et al. Antibunching of microwave-frequency photons
observed in correlation measurements using linear detectors. Nature Physics.
2011;7(2):154-158. doi:10.1038/nphys1845
apa: Bozyigit, D., Lang, C., Steffen, L., Fink, J. M., Eichler, C., Baur, M., …
Wallraff, A. (2011). Antibunching of microwave-frequency photons observed in correlation
measurements using linear detectors. Nature Physics. Nature Publishing
Group. https://doi.org/10.1038/nphys1845
chicago: Bozyigit, Deniz, C Lang, L. Steffen, Johannes M Fink, Christopher Eichler,
Matthias Baur, R Bianchetti, et al. “Antibunching of Microwave-Frequency Photons
Observed in Correlation Measurements Using Linear Detectors.” Nature Physics.
Nature Publishing Group, 2011. https://doi.org/10.1038/nphys1845.
ieee: D. Bozyigit et al., “Antibunching of microwave-frequency photons observed
in correlation measurements using linear detectors,” Nature Physics, vol.
7, no. 2. Nature Publishing Group, pp. 154–158, 2011.
ista: Bozyigit D, Lang C, Steffen L, Fink JM, Eichler C, Baur M, Bianchetti R, Leek
P, Filipp S, Da Silva M, Blais A, Wallraff A. 2011. Antibunching of microwave-frequency
photons observed in correlation measurements using linear detectors. Nature Physics.
7(2), 154–158.
mla: Bozyigit, Deniz, et al. “Antibunching of Microwave-Frequency Photons Observed
in Correlation Measurements Using Linear Detectors.” Nature Physics, vol.
7, no. 2, Nature Publishing Group, 2011, pp. 154–58, doi:10.1038/nphys1845.
short: D. Bozyigit, C. Lang, L. Steffen, J.M. Fink, C. Eichler, M. Baur, R. Bianchetti,
P. Leek, S. Filipp, M. Da Silva, A. Blais, A. Wallraff, Nature Physics 7 (2011)
154–158.
date_created: 2018-12-11T11:53:57Z
date_published: 2011-02-01T00:00:00Z
date_updated: 2021-01-12T06:53:07Z
day: '01'
doi: 10.1038/nphys1845
extern: 1
intvolume: ' 7'
issue: '2'
month: '02'
page: 154 - 158
publication: Nature Physics
publication_status: published
publisher: Nature Publishing Group
publist_id: '5340'
quality_controlled: 0
status: public
title: Antibunching of microwave-frequency photons observed in correlation measurements
using linear detectors
type: journal_article
volume: 7
year: '2011'
...