Response of a Fermi gas to time-dependent perturbations: Riemann-Hilbert approach at non-zero temperatures

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dc.creatorBraunecker, Bernd
dc.date2005-10-26
dc.date2006-03-07
dc.date.accessioned2026-07-07T06:45:31Z
dc.date.available2026-07-07T06:45:31Z
dc.descriptionWe provide an exact finite temperature extension to the recently developed Riemann-Hilbert approach for the calculation of response functions in nonadiabatically perturbed (multi-channel) Fermi gases. We give a precise definition of the finite temperature Riemann-Hilbert problem and show that it is equivalent to a zero temperature problem. Using this equivalence, we discuss the solution of the nonequilibrium Fermi-edge singularity problem at finite temperatures.
dc.description10 pages, 2 figures; 2 appendices added, a few modifications in the text, typos corrected; published in Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/cond-mat/0510680
dc.identifierhttp://arxiv.org/abs/cond-mat/0510680
dc.identifierPhys. Rev. B 73, 075122 (2006)
dc.identifierdoi:10.1103/PhysRevB.73.075122
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/103064
dc.subjectStrongly Correlated Electrons
dc.subjectMesoscale and Nanoscale Physics
dc.titleResponse of a Fermi gas to time-dependent perturbations: Riemann-Hilbert approach at non-zero temperatures
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