--- _id: '13403' abstract: - lang: eng text: We show that bimolecular reactions between species confined to the surfaces of nanoparticles can be manipulated by the nature of the linker, as well as by the curvature of the underlying particles. article_processing_charge: No article_type: original author: - first_name: Tino full_name: Zdobinsky, Tino last_name: Zdobinsky - first_name: Pradipta full_name: Sankar Maiti, Pradipta last_name: Sankar Maiti - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Zdobinsky T, Sankar Maiti P, Klajn R. Support curvature and conformational freedom control chemical reactivity of immobilized species. Journal of the American Chemical Society. 2014;136(7):2711-2714. doi:10.1021/ja411573a apa: Zdobinsky, T., Sankar Maiti, P., & Klajn, R. (2014). Support curvature and conformational freedom control chemical reactivity of immobilized species. Journal of the American Chemical Society. American Chemical Society. https://doi.org/10.1021/ja411573a chicago: Zdobinsky, Tino, Pradipta Sankar Maiti, and Rafal Klajn. “Support Curvature and Conformational Freedom Control Chemical Reactivity of Immobilized Species.” Journal of the American Chemical Society. American Chemical Society, 2014. https://doi.org/10.1021/ja411573a. ieee: T. Zdobinsky, P. Sankar Maiti, and R. Klajn, “Support curvature and conformational freedom control chemical reactivity of immobilized species,” Journal of the American Chemical Society, vol. 136, no. 7. American Chemical Society, pp. 2711–2714, 2014. ista: Zdobinsky T, Sankar Maiti P, Klajn R. 2014. Support curvature and conformational freedom control chemical reactivity of immobilized species. Journal of the American Chemical Society. 136(7), 2711–2714. mla: Zdobinsky, Tino, et al. “Support Curvature and Conformational Freedom Control Chemical Reactivity of Immobilized Species.” Journal of the American Chemical Society, vol. 136, no. 7, American Chemical Society, 2014, pp. 2711–14, doi:10.1021/ja411573a. short: T. Zdobinsky, P. Sankar Maiti, R. Klajn, Journal of the American Chemical Society 136 (2014) 2711–2714. date_created: 2023-08-01T09:46:44Z date_published: 2014-02-19T00:00:00Z date_updated: 2023-08-08T07:32:11Z day: '19' doi: 10.1021/ja411573a extern: '1' external_id: pmid: - '24320557' intvolume: ' 136' issue: '7' keyword: - Colloid and Surface Chemistry - Biochemistry - General Chemistry - Catalysis language: - iso: eng month: '02' oa_version: None page: 2711-2714 pmid: 1 publication: Journal of the American Chemical Society publication_identifier: eissn: - 1520-5126 issn: - 0002-7863 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Support curvature and conformational freedom control chemical reactivity of immobilized species type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 136 year: '2014' ... --- _id: '14018' abstract: - lang: eng text: The sensitivities of high-harmonic generation (HHG) and strong-field ionization (SFI) to coupled electronic and nuclear dynamics are studied, using the nitric oxide (NO) molecule as an example. A coherent superposition of electronic and rotational states of NO is prepared by impulsive stimulated Raman scattering and probed by simultaneous detection of HHG and SFI yields. We observe a fourfold higher sensitivity of high-harmonic generation to electronic dynamics and attribute it to the presence of inelastic quantum paths connecting coherently related electronic states [Kraus et al., Phys. Rev. Lett.111, 243005 (2013)]. Whereas different harmonic orders display very different sensitivities to rotational or electronic dynamics, strong-field ionization is found to be most sensitive to electronic motion. We introduce a general theoretical formalism for high-harmonic generation from coupled nuclear-electronic wave packets. We show that the unequal sensitivities of different harmonic orders to electronic or rotational dynamics result from the angle dependence of the photorecombination matrix elements which encode several autoionizing and shape resonances in the photoionization continuum of NO. We further study the dependence of rotational and electronic coherences on the intensity of the excitation pulse and support the observations with calculations. 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: Peter M. full_name: Kraus, Peter M. last_name: Kraus - first_name: Song Bin full_name: Zhang, Song Bin last_name: Zhang - first_name: Nina full_name: Rohringer, Nina last_name: Rohringer - first_name: Hans Jakob full_name: Wörner, Hans Jakob last_name: Wörner citation: ama: Baykusheva DR, Kraus PM, Zhang SB, Rohringer N, Wörner HJ. The sensitivities of high-harmonic generation and strong-field ionization to coupled electronic and nuclear dynamics. Faraday Discussions. 2014;171:113-132. doi:10.1039/c4fd00018h apa: Baykusheva, D. R., Kraus, P. M., Zhang, S. B., Rohringer, N., & Wörner, H. J. (2014). The sensitivities of high-harmonic generation and strong-field ionization to coupled electronic and nuclear dynamics. Faraday Discussions. Royal Society of Chemistry. https://doi.org/10.1039/c4fd00018h chicago: Baykusheva, Denitsa Rangelova, Peter M. Kraus, Song Bin Zhang, Nina Rohringer, and Hans Jakob Wörner. “The Sensitivities of High-Harmonic Generation and Strong-Field Ionization to Coupled Electronic and Nuclear Dynamics.” Faraday Discussions. Royal Society of Chemistry, 2014. https://doi.org/10.1039/c4fd00018h. ieee: D. R. Baykusheva, P. M. Kraus, S. B. Zhang, N. Rohringer, and H. J. Wörner, “The sensitivities of high-harmonic generation and strong-field ionization to coupled electronic and nuclear dynamics,” Faraday Discussions, vol. 171. Royal Society of Chemistry, pp. 113–132, 2014. ista: Baykusheva DR, Kraus PM, Zhang SB, Rohringer N, Wörner HJ. 2014. The sensitivities of high-harmonic generation and strong-field ionization to coupled electronic and nuclear dynamics. Faraday Discussions. 171, 113–132. mla: Baykusheva, Denitsa Rangelova, et al. “The Sensitivities of High-Harmonic Generation and Strong-Field Ionization to Coupled Electronic and Nuclear Dynamics.” Faraday Discussions, vol. 171, Royal Society of Chemistry, 2014, pp. 113–32, doi:10.1039/c4fd00018h. short: D.R. Baykusheva, P.M. Kraus, S.B. Zhang, N. Rohringer, H.J. Wörner, Faraday Discussions 171 (2014) 113–132. date_created: 2023-08-10T06:38:19Z date_published: 2014-04-14T00:00:00Z date_updated: 2023-08-22T08:58:12Z day: '14' doi: 10.1039/c4fd00018h extern: '1' external_id: pmid: - '25415558' intvolume: ' 171' keyword: - Physical and Theoretical Chemistry language: - iso: eng month: '04' oa_version: None page: 113-132 pmid: 1 publication: Faraday Discussions publication_identifier: eissn: - 1364-5498 issn: - 1359-6640 publication_status: published publisher: Royal Society of Chemistry quality_controlled: '1' scopus_import: '1' status: public title: The sensitivities of high-harmonic generation and strong-field ionization to coupled electronic and nuclear dynamics type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 171 year: '2014' ... --- _id: '14019' abstract: - lang: eng text: The cyclopropene radical cation (c-C3H₄⁺) is an important but poorly characterized three-membered-ring hydrocarbon. We report on a measurement of the high-resolution photoelectron and photoionization spectra of cyclopropene and several deuterated isotopomers, from which we have determined the rovibrational energy level structure of the X⁺ (2)B2 ground electronic state of c-C3H₄⁺ at low energies for the first time. The synthesis of the partially deuterated isotopomers always resulted in mixtures of several isotopomers, differing in their number of D atoms and in the location of these atoms, so that the photoelectron spectra of deuterated samples are superpositions of the spectra of several isotopomers. The rotationally resolved spectra indicate a C(2v)-symmetric R0 structure for the ground electronic state of c-C3H₄⁺. Two vibrational modes of c-C3H₄⁺ are found to have vibrational wave numbers below 300 cm(-1), which is surprising for such a small cyclic hydrocarbon. The analysis of the isotopic shifts of the vibrational levels enabled the assignment of the lowest-frequency mode (fundamental wave number of ≈110 cm(-1) in c-C3H₄⁺) to the CH2 torsional mode (ν₈⁺, A2 symmetry) and of the second-lowest-frequency mode (≈210 cm(-1) in c-C3H₄⁺) to a mode combining a CH out-of-plane with a CH2 rocking motion (ν₁₅⁺, B2 symmetry). The potential energy along the CH2 torsional coordinate is flat near the equilibrium structure and leads to a pronounced anharmonicity. article_number: '064317' article_processing_charge: No article_type: original author: - first_name: K. full_name: Vasilatou, K. last_name: Vasilatou - first_name: J. M. full_name: Michaud, J. M. last_name: Michaud - first_name: Denitsa Rangelova full_name: Baykusheva, Denitsa Rangelova id: 71b4d059-2a03-11ee-914d-dfa3beed6530 last_name: Baykusheva - first_name: G. full_name: Grassi, G. last_name: Grassi - first_name: F. full_name: Merkt, F. last_name: Merkt citation: ama: 'Vasilatou K, Michaud JM, Baykusheva DR, Grassi G, Merkt F. The cyclopropene radical cation: Rovibrational level structure at low energies from high-resolution photoelectron spectra. The Journal of Chemical Physics. 2014;141(6). doi:10.1063/1.4890744' apa: 'Vasilatou, K., Michaud, J. M., Baykusheva, D. R., Grassi, G., & Merkt, F. (2014). The cyclopropene radical cation: Rovibrational level structure at low energies from high-resolution photoelectron spectra. The Journal of Chemical Physics. AIP Publishing. https://doi.org/10.1063/1.4890744' chicago: 'Vasilatou, K., J. M. Michaud, Denitsa Rangelova Baykusheva, G. Grassi, and F. Merkt. “The Cyclopropene Radical Cation: Rovibrational Level Structure at Low Energies from High-Resolution Photoelectron Spectra.” The Journal of Chemical Physics. AIP Publishing, 2014. https://doi.org/10.1063/1.4890744.' ieee: 'K. Vasilatou, J. M. Michaud, D. R. Baykusheva, G. Grassi, and F. Merkt, “The cyclopropene radical cation: Rovibrational level structure at low energies from high-resolution photoelectron spectra,” The Journal of Chemical Physics, vol. 141, no. 6. AIP Publishing, 2014.' ista: 'Vasilatou K, Michaud JM, Baykusheva DR, Grassi G, Merkt F. 2014. The cyclopropene radical cation: Rovibrational level structure at low energies from high-resolution photoelectron spectra. The Journal of Chemical Physics. 141(6), 064317.' mla: 'Vasilatou, K., et al. “The Cyclopropene Radical Cation: Rovibrational Level Structure at Low Energies from High-Resolution Photoelectron Spectra.” The Journal of Chemical Physics, vol. 141, no. 6, 064317, AIP Publishing, 2014, doi:10.1063/1.4890744.' short: K. Vasilatou, J.M. Michaud, D.R. Baykusheva, G. Grassi, F. Merkt, The Journal of Chemical Physics 141 (2014). date_created: 2023-08-10T06:38:30Z date_published: 2014-08-14T00:00:00Z date_updated: 2023-08-22T09:01:31Z day: '14' doi: 10.1063/1.4890744 extern: '1' external_id: pmid: - '25134581' intvolume: ' 141' issue: '6' keyword: - Physical and Theoretical Chemistry - General Physics and Astronomy language: - iso: eng month: '08' oa_version: None pmid: 1 publication: The Journal of Chemical Physics publication_identifier: eissn: - 1089-7690 issn: - 0021-9606 publication_status: published publisher: AIP Publishing quality_controlled: '1' scopus_import: '1' status: public title: 'The cyclopropene radical cation: Rovibrational level structure at low energies from high-resolution photoelectron spectra' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 141 year: '2014' ... --- _id: '14021' abstract: - lang: eng text: We present the detailed analysis of a new two-pulse orientation scheme that achieves macroscopic field-free orientation at the high particle densities required for attosecond and high-harmonic spectroscopies (Kraus et al 2013 arXiv:1311.3923). Carbon monoxide molecules are oriented by combining one-colour and delayed two-colour non-resonant femtosecond laser pulses. High-harmonic generation is used to probe the oriented wave-packet dynamics and reveals that a very high degree of orientation (Nup/Ntotal = 0.73–0.82) is achieved. We further extend this approach to orienting carbonyl sulphide molecules. We show that the present two-pulse scheme selectively enhances orientation created by the hyperpolarizability interaction whereas the ionization-depletion mechanism plays no role. We further control and optimize orientation through the delay between the one- and two-colour pump pulses. Finally, we demonstrate a complementary encoding of electronic-structure features, such as shape resonances, in the even- and odd-harmonic spectrum. The achieved progress makes two-pulse field-free orientation an attractive tool for a broad class of time-resolved measurements. article_number: '124030' article_processing_charge: No article_type: original author: - first_name: P M full_name: Kraus, P M last_name: Kraus - first_name: Denitsa Rangelova full_name: Baykusheva, Denitsa Rangelova id: 71b4d059-2a03-11ee-914d-dfa3beed6530 last_name: Baykusheva - first_name: H J full_name: Wörner, H J last_name: Wörner citation: ama: 'Kraus PM, Baykusheva DR, Wörner HJ. Two-pulse orientation dynamics and high-harmonic spectroscopy of strongly-oriented molecules. Journal of Physics B: Atomic, Molecular and Optical Physics. 2014;47(12). doi:10.1088/0953-4075/47/12/124030' apa: 'Kraus, P. M., Baykusheva, D. R., & Wörner, H. J. (2014). Two-pulse orientation dynamics and high-harmonic spectroscopy of strongly-oriented molecules. Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing. https://doi.org/10.1088/0953-4075/47/12/124030' chicago: 'Kraus, P M, Denitsa Rangelova Baykusheva, and H J Wörner. “Two-Pulse Orientation Dynamics and High-Harmonic Spectroscopy of Strongly-Oriented Molecules.” Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing, 2014. https://doi.org/10.1088/0953-4075/47/12/124030.' ieee: 'P. M. Kraus, D. R. Baykusheva, and H. J. Wörner, “Two-pulse orientation dynamics and high-harmonic spectroscopy of strongly-oriented molecules,” Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 47, no. 12. IOP Publishing, 2014.' ista: 'Kraus PM, Baykusheva DR, Wörner HJ. 2014. Two-pulse orientation dynamics and high-harmonic spectroscopy of strongly-oriented molecules. Journal of Physics B: Atomic, Molecular and Optical Physics. 47(12), 124030.' mla: 'Kraus, P. M., et al. “Two-Pulse Orientation Dynamics and High-Harmonic Spectroscopy of Strongly-Oriented Molecules.” Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 47, no. 12, 124030, IOP Publishing, 2014, doi:10.1088/0953-4075/47/12/124030.' short: 'P.M. Kraus, D.R. Baykusheva, H.J. Wörner, Journal of Physics B: Atomic, Molecular and Optical Physics 47 (2014).' date_created: 2023-08-10T06:38:48Z date_published: 2014-06-10T00:00:00Z date_updated: 2023-08-22T09:04:30Z day: '10' doi: 10.1088/0953-4075/47/12/124030 extern: '1' external_id: arxiv: - '1311.3923' intvolume: ' 47' issue: '12' keyword: - Condensed Matter Physics - Atomic and Molecular Physics - and Optics language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1311.3923 month: '06' oa: 1 oa_version: Preprint publication: 'Journal of Physics B: Atomic, Molecular and Optical Physics' publication_identifier: eissn: - 1361-6455 issn: - 0953-4075 publication_status: published publisher: IOP Publishing quality_controlled: '1' scopus_import: '1' status: public title: Two-pulse orientation dynamics and high-harmonic spectroscopy of strongly-oriented molecules type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 47 year: '2014' ... --- _id: '14020' abstract: - lang: eng text: We report the observation of macroscopic field-free orientation, i.e., more than 73% of CO molecules pointing in the same direction. This is achieved through an all-optical scheme operating at high particle densities (>10(17)  cm(-3)) that combines one-color (ω) and two-color (ω+2ω) nonresonant femtosecond laser pulses. We show that the achieved orientation solely relies on the hyperpolarizability interaction as opposed to an ionization-depletion mechanism, thus, opening a wide range of applications. The achieved strong orientation enables us to reveal the molecular-frame anisotropies of the photorecombination amplitudes and phases caused by a shape resonance. The resonance appears as a local maximum in the even-harmonic emission around 28 eV. In contrast, the odd-harmonic emission is suppressed in this spectral region through the combined effects of an asymmetric photorecombination phase and a subcycle Stark effect, generic for polar molecules, that we experimentally identify. article_number: '023001' article_processing_charge: No article_type: original author: - first_name: P. M. full_name: Kraus, P. M. last_name: Kraus - first_name: Denitsa Rangelova full_name: Baykusheva, Denitsa Rangelova id: 71b4d059-2a03-11ee-914d-dfa3beed6530 last_name: Baykusheva - first_name: H. J. full_name: Wörner, H. J. last_name: Wörner citation: ama: Kraus PM, Baykusheva DR, Wörner HJ. Two-pulse field-free orientation reveals anisotropy of molecular shape resonance. Physical Review Letters. 2014;113(2). doi:10.1103/physrevlett.113.023001 apa: Kraus, P. M., Baykusheva, D. R., & Wörner, H. J. (2014). Two-pulse field-free orientation reveals anisotropy of molecular shape resonance. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.113.023001 chicago: Kraus, P. M., Denitsa Rangelova Baykusheva, and H. J. Wörner. “Two-Pulse Field-Free Orientation Reveals Anisotropy of Molecular Shape Resonance.” Physical Review Letters. American Physical Society, 2014. https://doi.org/10.1103/physrevlett.113.023001. ieee: P. M. Kraus, D. R. Baykusheva, and H. J. Wörner, “Two-pulse field-free orientation reveals anisotropy of molecular shape resonance,” Physical Review Letters, vol. 113, no. 2. American Physical Society, 2014. ista: Kraus PM, Baykusheva DR, Wörner HJ. 2014. Two-pulse field-free orientation reveals anisotropy of molecular shape resonance. Physical Review Letters. 113(2), 023001. mla: Kraus, P. M., et al. “Two-Pulse Field-Free Orientation Reveals Anisotropy of Molecular Shape Resonance.” Physical Review Letters, vol. 113, no. 2, 023001, American Physical Society, 2014, doi:10.1103/physrevlett.113.023001. short: P.M. Kraus, D.R. Baykusheva, H.J. Wörner, Physical Review Letters 113 (2014). date_created: 2023-08-10T06:38:38Z date_published: 2014-07-11T00:00:00Z date_updated: 2023-08-22T09:02:56Z day: '11' doi: 10.1103/physrevlett.113.023001 extern: '1' external_id: arxiv: - '1311.3923' pmid: - '25062172' intvolume: ' 113' issue: '2' keyword: - General Physics and Astronomy language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1311.3923 month: '07' oa: 1 oa_version: Preprint pmid: 1 publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Two-pulse field-free orientation reveals anisotropy of molecular shape resonance type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 113 year: '2014' ... --- _id: '535' abstract: - lang: eng text: Energy games belong to a class of turn-based two-player infinite-duration games played on a weighted directed graph. It is one of the rare and intriguing combinatorial problems that lie in NP∩co-NP, but are not known to be in P. The existence of polynomial-time algorithms has been a major open problem for decades and apart from pseudopolynomial algorithms there is no algorithm that solves any non-trivial subclass in polynomial time. In this paper, we give several results based on the weight structures of the graph. First, we identify a notion of penalty and present a polynomial-time algorithm when the penalty is large. Our algorithm is the first polynomial-time algorithm on a large class of weighted graphs. It includes several worst-case instances on which previous algorithms, such as value iteration and random facet algorithms, require at least sub-exponential time. Our main technique is developing the first non-trivial approximation algorithm and showing how to convert it to an exact algorithm. Moreover, we show that in a practical case in verification where weights are clustered around a constant number of values, the energy game problem can be solved in polynomial time. We also show that the problem is still as hard as in general when the clique-width is bounded or the graph is strongly ergodic, suggesting that restricting the graph structure does not necessarily help. article_processing_charge: No article_type: original author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Monika H full_name: Henzinger, Monika H id: 540c9bbd-f2de-11ec-812d-d04a5be85630 last_name: Henzinger orcid: 0000-0002-5008-6530 - first_name: Sebastian full_name: Krinninger, Sebastian last_name: Krinninger - first_name: Danupon full_name: Nanongkai, Danupon last_name: Nanongkai citation: ama: Chatterjee K, Henzinger MH, Krinninger S, Nanongkai D. Polynomial-time algorithms for energy games with special weight structures. Algorithmica. 2014;70(3):457-492. doi:10.1007/s00453-013-9843-7 apa: Chatterjee, K., Henzinger, M. H., Krinninger, S., & Nanongkai, D. (2014). Polynomial-time algorithms for energy games with special weight structures. Algorithmica. Springer. https://doi.org/10.1007/s00453-013-9843-7 chicago: Chatterjee, Krishnendu, Monika H Henzinger, Sebastian Krinninger, and Danupon Nanongkai. “Polynomial-Time Algorithms for Energy Games with Special Weight Structures.” Algorithmica. Springer, 2014. https://doi.org/10.1007/s00453-013-9843-7. ieee: K. Chatterjee, M. H. Henzinger, S. Krinninger, and D. Nanongkai, “Polynomial-time algorithms for energy games with special weight structures,” Algorithmica, vol. 70, no. 3. Springer, pp. 457–492, 2014. ista: Chatterjee K, Henzinger MH, Krinninger S, Nanongkai D. 2014. Polynomial-time algorithms for energy games with special weight structures. Algorithmica. 70(3), 457–492. mla: Chatterjee, Krishnendu, et al. “Polynomial-Time Algorithms for Energy Games with Special Weight Structures.” Algorithmica, vol. 70, no. 3, Springer, 2014, pp. 457–92, doi:10.1007/s00453-013-9843-7. short: K. Chatterjee, M.H. Henzinger, S. Krinninger, D. Nanongkai, Algorithmica 70 (2014) 457–492. date_created: 2018-12-11T11:47:01Z date_published: 2014-11-01T00:00:00Z date_updated: 2023-09-05T14:09:29Z day: '01' department: - _id: KrCh doi: 10.1007/s00453-013-9843-7 ec_funded: 1 external_id: arxiv: - '1604.08234' intvolume: ' 70' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1604.08234 month: '11' oa: 1 oa_version: Preprint page: 457 - 492 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Algorithmica publication_status: published publisher: Springer publist_id: '7282' quality_controlled: '1' related_material: record: - id: '10905' relation: earlier_version status: public scopus_import: '1' status: public title: Polynomial-time algorithms for energy games with special weight structures type: journal_article user_id: 72615eeb-f1f3-11ec-aa25-d4573ddc34fd volume: 70 year: '2014' ... --- _id: '10886' abstract: - lang: eng text: We propose a method for visualizing two-dimensional symmetric positive definite tensor fields using the Heat Kernel Signature (HKS). The HKS is derived from the heat kernel and was originally introduced as an isometry invariant shape signature. Each positive definite tensor field defines a Riemannian manifold by considering the tensor field as a Riemannian metric. On this Riemmanian manifold we can apply the definition of the HKS. The resulting scalar quantity is used for the visualization of tensor fields. The HKS is closely related to the Gaussian curvature of the Riemannian manifold and the time parameter of the heat kernel allows a multiscale analysis in a natural way. In this way, the HKS represents field related scale space properties, enabling a level of detail analysis of tensor fields. This makes the HKS an interesting new scalar quantity for tensor fields, which differs significantly from usual tensor invariants like the trace or the determinant. A method for visualization and a numerical realization of the HKS for tensor fields is proposed in this chapter. To validate the approach we apply it to some illustrating simple examples as isolated critical points and to a medical diffusion tensor data set. acknowledgement: This research is partially supported by the TOPOSYS project FP7-ICT-318493-STREP. alternative_title: - Mathematics and Visualization article_processing_charge: No author: - first_name: Valentin full_name: Zobel, Valentin last_name: Zobel - first_name: Jan full_name: Reininghaus, Jan id: 4505473A-F248-11E8-B48F-1D18A9856A87 last_name: Reininghaus - first_name: Ingrid full_name: Hotz, Ingrid last_name: Hotz citation: ama: 'Zobel V, Reininghaus J, Hotz I. Visualization of two-dimensional symmetric positive definite tensor fields using the heat kernel signature. In: Topological Methods in Data Analysis and Visualization III . Springer; 2014:249-262. doi:10.1007/978-3-319-04099-8_16' apa: Zobel, V., Reininghaus, J., & Hotz, I. (2014). Visualization of two-dimensional symmetric positive definite tensor fields using the heat kernel signature. In Topological Methods in Data Analysis and Visualization III (pp. 249–262). Springer. https://doi.org/10.1007/978-3-319-04099-8_16 chicago: Zobel, Valentin, Jan Reininghaus, and Ingrid Hotz. “Visualization of Two-Dimensional Symmetric Positive Definite Tensor Fields Using the Heat Kernel Signature.” In Topological Methods in Data Analysis and Visualization III , 249–62. Springer, 2014. https://doi.org/10.1007/978-3-319-04099-8_16. ieee: V. Zobel, J. Reininghaus, and I. Hotz, “Visualization of two-dimensional symmetric positive definite tensor fields using the heat kernel signature,” in Topological Methods in Data Analysis and Visualization III , 2014, pp. 249–262. ista: Zobel V, Reininghaus J, Hotz I. 2014. Visualization of two-dimensional symmetric positive definite tensor fields using the heat kernel signature. Topological Methods in Data Analysis and Visualization III . , Mathematics and Visualization, , 249–262. mla: Zobel, Valentin, et al. “Visualization of Two-Dimensional Symmetric Positive Definite Tensor Fields Using the Heat Kernel Signature.” Topological Methods in Data Analysis and Visualization III , Springer, 2014, pp. 249–62, doi:10.1007/978-3-319-04099-8_16. short: V. Zobel, J. Reininghaus, I. Hotz, in:, Topological Methods in Data Analysis and Visualization III , Springer, 2014, pp. 249–262. date_created: 2022-03-18T13:05:39Z date_published: 2014-03-19T00:00:00Z date_updated: 2023-09-05T14:13:16Z day: '19' department: - _id: HeEd doi: 10.1007/978-3-319-04099-8_16 language: - iso: eng month: '03' oa_version: None page: 249-262 publication: 'Topological Methods in Data Analysis and Visualization III ' publication_identifier: eisbn: - '9783319040998' eissn: - 2197-666X isbn: - '9783319040981' issn: - 1612-3786 publication_status: published publisher: Springer quality_controlled: '1' scopus_import: '1' status: public title: Visualization of two-dimensional symmetric positive definite tensor fields using the heat kernel signature type: conference user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 year: '2014' ... --- _id: '6178' abstract: - lang: eng text: Mechanically coupled cells can generate forces driving cell and tissue morphogenesis during development. Visualization and measuring of these forces is of major importance to better understand the complexity of the biomechanic processes that shape cells and tissues. Here, we describe how UV laser ablation can be utilized to quantitatively assess mechanical tension in different tissues of the developing zebrafish and in cultures of primary germ layer progenitor cells ex vivo. article_processing_charge: No author: - first_name: Michael full_name: Smutny, Michael id: 3FE6E4E8-F248-11E8-B48F-1D18A9856A87 last_name: Smutny orcid: 0000-0002-5920-9090 - first_name: Martin full_name: Behrndt, Martin id: 3ECECA3A-F248-11E8-B48F-1D18A9856A87 last_name: Behrndt - first_name: Pedro full_name: Campinho, Pedro id: 3AFBBC42-F248-11E8-B48F-1D18A9856A87 last_name: Campinho orcid: 0000-0002-8526-5416 - first_name: Verena full_name: Ruprecht, Verena id: 4D71A03A-F248-11E8-B48F-1D18A9856A87 last_name: Ruprecht orcid: 0000-0003-4088-8633 - first_name: Carl-Philipp J full_name: Heisenberg, Carl-Philipp J id: 39427864-F248-11E8-B48F-1D18A9856A87 last_name: Heisenberg orcid: 0000-0002-0912-4566 citation: ama: 'Smutny M, Behrndt M, Campinho P, Ruprecht V, Heisenberg C-PJ. UV laser ablation to measure cell and tissue-generated forces in the zebrafish embryo in vivo and ex vivo. In: Nelson C, ed. Tissue Morphogenesis. Vol 1189. Methods in Molecular Biology. New York, NY: Springer; 2014:219-235. doi:10.1007/978-1-4939-1164-6_15' apa: 'Smutny, M., Behrndt, M., Campinho, P., Ruprecht, V., & Heisenberg, C.-P. J. (2014). UV laser ablation to measure cell and tissue-generated forces in the zebrafish embryo in vivo and ex vivo. In C. Nelson (Ed.), Tissue Morphogenesis (Vol. 1189, pp. 219–235). New York, NY: Springer. https://doi.org/10.1007/978-1-4939-1164-6_15' chicago: 'Smutny, Michael, Martin Behrndt, Pedro Campinho, Verena Ruprecht, and Carl-Philipp J Heisenberg. “UV Laser Ablation to Measure Cell and Tissue-Generated Forces in the Zebrafish Embryo in Vivo and Ex Vivo.” In Tissue Morphogenesis, edited by Celeste Nelson, 1189:219–35. Methods in Molecular Biology. New York, NY: Springer, 2014. https://doi.org/10.1007/978-1-4939-1164-6_15.' ieee: 'M. Smutny, M. Behrndt, P. Campinho, V. Ruprecht, and C.-P. J. Heisenberg, “UV laser ablation to measure cell and tissue-generated forces in the zebrafish embryo in vivo and ex vivo,” in Tissue Morphogenesis, vol. 1189, C. Nelson, Ed. New York, NY: Springer, 2014, pp. 219–235.' ista: 'Smutny M, Behrndt M, Campinho P, Ruprecht V, Heisenberg C-PJ. 2014.UV laser ablation to measure cell and tissue-generated forces in the zebrafish embryo in vivo and ex vivo. In: Tissue Morphogenesis. vol. 1189, 219–235.' mla: Smutny, Michael, et al. “UV Laser Ablation to Measure Cell and Tissue-Generated Forces in the Zebrafish Embryo in Vivo and Ex Vivo.” Tissue Morphogenesis, edited by Celeste Nelson, vol. 1189, Springer, 2014, pp. 219–35, doi:10.1007/978-1-4939-1164-6_15. short: M. Smutny, M. Behrndt, P. Campinho, V. Ruprecht, C.-P.J. Heisenberg, in:, C. Nelson (Ed.), Tissue Morphogenesis, Springer, New York, NY, 2014, pp. 219–235. date_created: 2019-03-26T08:55:59Z date_published: 2014-08-22T00:00:00Z date_updated: 2023-09-05T14:12:00Z day: '22' department: - _id: CaHe doi: 10.1007/978-1-4939-1164-6_15 editor: - first_name: Celeste full_name: Nelson, Celeste last_name: Nelson external_id: pmid: - '25245697' intvolume: ' 1189' language: - iso: eng month: '08' oa_version: None page: 219-235 place: New York, NY pmid: 1 publication: Tissue Morphogenesis publication_identifier: eissn: - 1940-6029 isbn: - '9781493911639' - '9781493911646' issn: - 1064-3745 publication_status: published publisher: Springer quality_controlled: '1' series_title: Methods in Molecular Biology status: public title: UV laser ablation to measure cell and tissue-generated forces in the zebrafish embryo in vivo and ex vivo type: book_chapter user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 1189 year: '2014' ... --- _id: '10814' abstract: - lang: eng text: We review recent progress towards a rigorous understanding of the excitation spectrum of bosonic quantum many-body systems. In particular, we explain how one can rigorously establish the predictions resulting from the Bogoliubov approximation in the mean field limit. The latter predicts that the spectrum is made up of elementary excitations, whose energy behaves linearly in the momentum for small momentum. This property is crucial for the superfluid behavior of the system. We also discuss a list of open problems in this field. article_processing_charge: No article_type: original author: - first_name: Robert full_name: Seiringer, Robert id: 4AFD0470-F248-11E8-B48F-1D18A9856A87 last_name: Seiringer orcid: 0000-0002-6781-0521 citation: ama: Seiringer R. The excitation spectrum for Bose fluids with weak interactions. Jahresbericht der Deutschen Mathematiker-Vereinigung. 2014;116:21-41. doi:10.1365/s13291-014-0083-9 apa: Seiringer, R. (2014). The excitation spectrum for Bose fluids with weak interactions. Jahresbericht Der Deutschen Mathematiker-Vereinigung. Springer Nature. https://doi.org/10.1365/s13291-014-0083-9 chicago: Seiringer, Robert. “The Excitation Spectrum for Bose Fluids with Weak Interactions.” Jahresbericht Der Deutschen Mathematiker-Vereinigung. Springer Nature, 2014. https://doi.org/10.1365/s13291-014-0083-9. ieee: R. Seiringer, “The excitation spectrum for Bose fluids with weak interactions,” Jahresbericht der Deutschen Mathematiker-Vereinigung, vol. 116. Springer Nature, pp. 21–41, 2014. ista: Seiringer R. 2014. The excitation spectrum for Bose fluids with weak interactions. Jahresbericht der Deutschen Mathematiker-Vereinigung. 116, 21–41. mla: Seiringer, Robert. “The Excitation Spectrum for Bose Fluids with Weak Interactions.” Jahresbericht Der Deutschen Mathematiker-Vereinigung, vol. 116, Springer Nature, 2014, pp. 21–41, doi:10.1365/s13291-014-0083-9. short: R. Seiringer, Jahresbericht Der Deutschen Mathematiker-Vereinigung 116 (2014) 21–41. date_created: 2022-03-04T07:54:39Z date_published: 2014-03-01T00:00:00Z date_updated: 2023-09-05T14:19:47Z day: '01' department: - _id: RoSe doi: 10.1365/s13291-014-0083-9 intvolume: ' 116' keyword: - General Medicine language: - iso: eng month: '03' oa_version: None page: 21-41 publication: Jahresbericht der Deutschen Mathematiker-Vereinigung publication_identifier: eissn: - 1869-7135 issn: - 0012-0456 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: The excitation spectrum for Bose fluids with weak interactions type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 116 year: '2014' ... --- _id: '10817' abstract: - lang: eng text: The Morse-Smale complex can be either explicitly or implicitly represented. Depending on the type of representation, the simplification of the Morse-Smale complex works differently. In the explicit representation, the Morse-Smale complex is directly simplified by explicitly reconnecting the critical points during the simplification. In the implicit representation, on the other hand, the Morse-Smale complex is given by a combinatorial gradient field. In this setting, the simplification changes the combinatorial flow, which yields an indirect simplification of the Morse-Smale complex. The topological complexity of the Morse-Smale complex is reduced in both representations. However, the simplifications generally yield different results. In this chapter, we emphasize properties of the two representations that cause these differences. We also provide a complexity analysis of the two schemes with respect to running time and memory consumption. acknowledgement: This research is supported and funded by the Digiteo unTopoVis project, the TOPOSYS project FP7-ICT-318493-STREP, and MPC-VCC. article_processing_charge: No author: - first_name: David full_name: Günther, David last_name: Günther - first_name: Jan full_name: Reininghaus, Jan id: 4505473A-F248-11E8-B48F-1D18A9856A87 last_name: Reininghaus - first_name: Hans-Peter full_name: Seidel, Hans-Peter last_name: Seidel - first_name: Tino full_name: Weinkauf, Tino last_name: Weinkauf citation: ama: 'Günther D, Reininghaus J, Seidel H-P, Weinkauf T. Notes on the simplification of the Morse-Smale complex. In: Bremer P-T, Hotz I, Pascucci V, Peikert R, eds. Topological Methods in Data Analysis and Visualization III. Mathematics and Visualization. Cham: Springer Nature; 2014:135-150. doi:10.1007/978-3-319-04099-8_9' apa: 'Günther, D., Reininghaus, J., Seidel, H.-P., & Weinkauf, T. (2014). Notes on the simplification of the Morse-Smale complex. In P.-T. Bremer, I. Hotz, V. Pascucci, & R. Peikert (Eds.), Topological Methods in Data Analysis and Visualization III. (pp. 135–150). Cham: Springer Nature. https://doi.org/10.1007/978-3-319-04099-8_9' chicago: 'Günther, David, Jan Reininghaus, Hans-Peter Seidel, and Tino Weinkauf. “Notes on the Simplification of the Morse-Smale Complex.” In Topological Methods in Data Analysis and Visualization III., edited by Peer-Timo Bremer, Ingrid Hotz, Valerio Pascucci, and Ronald Peikert, 135–50. Mathematics and Visualization. Cham: Springer Nature, 2014. https://doi.org/10.1007/978-3-319-04099-8_9.' ieee: 'D. Günther, J. Reininghaus, H.-P. Seidel, and T. Weinkauf, “Notes on the simplification of the Morse-Smale complex,” in Topological Methods in Data Analysis and Visualization III., P.-T. Bremer, I. Hotz, V. Pascucci, and R. Peikert, Eds. Cham: Springer Nature, 2014, pp. 135–150.' ista: 'Günther D, Reininghaus J, Seidel H-P, Weinkauf T. 2014.Notes on the simplification of the Morse-Smale complex. In: Topological Methods in Data Analysis and Visualization III. , 135–150.' mla: Günther, David, et al. “Notes on the Simplification of the Morse-Smale Complex.” Topological Methods in Data Analysis and Visualization III., edited by Peer-Timo Bremer et al., Springer Nature, 2014, pp. 135–50, doi:10.1007/978-3-319-04099-8_9. short: D. Günther, J. Reininghaus, H.-P. Seidel, T. Weinkauf, in:, P.-T. Bremer, I. Hotz, V. Pascucci, R. Peikert (Eds.), Topological Methods in Data Analysis and Visualization III., Springer Nature, Cham, 2014, pp. 135–150. date_created: 2022-03-04T08:33:57Z date_published: 2014-03-19T00:00:00Z date_updated: 2023-09-05T15:33:45Z day: '19' department: - _id: HeEd doi: 10.1007/978-3-319-04099-8_9 ec_funded: 1 editor: - first_name: Peer-Timo full_name: Bremer, Peer-Timo last_name: Bremer - first_name: Ingrid full_name: Hotz, Ingrid last_name: Hotz - first_name: Valerio full_name: Pascucci, Valerio last_name: Pascucci - first_name: Ronald full_name: Peikert, Ronald last_name: Peikert language: - iso: eng month: '03' oa_version: None page: 135-150 place: Cham project: - _id: 255D761E-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '318493' name: Topological Complex Systems publication: Topological Methods in Data Analysis and Visualization III. publication_identifier: eisbn: - '9783319040998' eissn: - 2197-666X isbn: - '9783319040981' issn: - 1612-3786 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' series_title: Mathematics and Visualization status: public title: Notes on the simplification of the Morse-Smale complex type: book_chapter user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 year: '2014' ...