scholarly journals Quench dynamics of an ultracold Fermi gas in the BCS regime: Spectral properties and confinement-induced breakdown of the Higgs mode

2015 ◽  
Vol 91 (4) ◽  
Author(s):  
S. Hannibal ◽  
P. Kettmann ◽  
M. D. Croitoru ◽  
A. Vagov ◽  
V. M. Axt ◽  
...  
Keyword(s):  
Spectral Properties ◽  
Fermi Gas ◽  
Ultracold Fermi Gas ◽  
Higgs Mode ◽  
Quench Dynamics

scholarly journals Pure Goldstone mode in the quench dynamics of a confined ultracold Fermi gas in the BCS-BEC crossover regime

2017 ◽  
Vol 96 (3) ◽  
Author(s):  
P. Kettmann ◽  
S. Hannibal ◽  
M. D. Croitoru ◽  
V. M. Axt ◽  
T. Kuhn
Keyword(s):  
Fermi Gas ◽  
Ultracold Fermi Gas ◽  
Goldstone Mode ◽  
Quench Dynamics

scholarly journals Quench Dynamics of a Fermi Gas with Strong Nonlocal Interactions

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Elmer Guardado-Sanchez ◽  
Benjamin M. Spar ◽  
Peter Schauss ◽  
Ron Belyansky ◽  
Jeremy T. Young ◽  
...  
Keyword(s):  
Fermi Gas ◽  
Nonlocal Interactions ◽  
Quench Dynamics

scholarly journals Excess energy of an ultracold Fermi gas in a trapped geometry

2012 ◽  
Vol 66 (8) ◽  
Author(s):  
Shyamal Biswas ◽  
Debnarayan Jana ◽  
Raj Kumar Manna
Keyword(s):  
Fermi Gas ◽  
Excess Energy ◽  
Ultracold Fermi Gas

Radio-frequency spectroscopy of weakly bound molecules in ultracold Fermi gas

2014 ◽  
Vol 23 (1) ◽  
pp. 013402 ◽  
Author(s):  
Liang-Hui Huang ◽  
Peng-Jun Wang ◽  
Zheng-Kun Fu ◽  
Jing Zhang
Keyword(s):  
Radio Frequency ◽  
Fermi Gas ◽  
Ultracold Fermi Gas ◽  
Weakly Bound ◽  
Radio Frequency Spectroscopy

scholarly journals Effect of weak disorder on the BCS–BEC crossover in a two-dimensional Fermi gas

2017 ◽  
Vol 31 (09) ◽  
pp. 1750066
Author(s):  
Ayan Khan ◽  
B. Tanatar
Keyword(s):  
Field Theory ◽  
Mean Field Theory ◽  
Mean Field ◽  
Fermi Gas ◽  
Ultracold Fermi Gas ◽  
Condensate Fraction ◽  
Two Dimensional ◽  
Weak Disorder ◽  
Unique Nature

In this paper, we study the two-dimensional (2D) ultracold Fermi gas with weak impurity in the framework of mean-field theory where the impurity is introduced through Gaussian fluctuations. We have investigated the role of the impurity by studying the experimentally accessible quantities such as condensate fraction and equation of state of the ultracold systems. Our analysis reveals that at the crossover, the disorder enhances superfluidity, which we attribute to the unique nature of the unitary region and to the dimensional effect.

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