Publication
Title
Dynamical response of ultracold interacting fermion-boson mixtures
Author
Abstract
We analyze the dynamical response of a ultracold binary gas mixture in the presence of strong boson-fermion couplings. Mapping the problem onto that of the optical response of a metal/semiconductor electronic degrees of freedom to electromagnetic perturbation we calculate the corresponding dynamic linear response susceptibility in the non-perturbative regimes of strong boson-fermion coupling using diagrammatic resummation technique as well as quantum Monte Carlo simulations. We evaluate the Bragg spectral function as well as the optical conductivity and find a pseudogap, which forms in certain parameter regimes. (C) 2014 Elsevier B.V. All rights reserved.
Language
English
Source (journal)
Physica: B: condensed matter. - Amsterdam
Publication
Amsterdam : 2014
ISSN
0921-4526
Volume/pages
454(2014), p. 224-234
ISI
000342682100038
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 10.12.2014
Last edited 20.11.2017
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