Josephson effect in superfluid atomic Fermi gases at finite temperature

被引：0
作者：
Yavari, H. [1 ]
Afsaneh, E. [1 ]
Mirzai, S. [1 ]
机构：
[1] Univ Isfahan, Dept Phys, Hezar Jarib 81746, Isfahan, Iran
来源：
SOLID STATE SCIENCES | 2012年 / 14卷 / 08期
关键词：
Superfluidity; Fermi gases; Josephson effect; BOSE-EINSTEIN CONDENSATE; PAIRING GAP; DYNAMICS; PHYSICS; PHASE;
D O I：
10.1016/j.solidstatesciences.2012.05.021
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
By using Green's function method and linear response theory the Josephson effect of neutral fermions at finite temperature is investigated. Four different hyperfine states of the atoms are assumed to be trapped and to form two superfluids via the BCS-type of pairing. The Josephson effect can be realized by coupling the superfluids with two laser fields. The laser interaction is assumed to be a small perturbation and its effect is calculated using linear response theory. Both, single particle tunneling and the Josephson current, at finite temperature are calculated in Matsubara formalism. (C) 2012 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码：1244 / 1249
页数：6
相关论文
共 50 条
[31]   Mediated interactions and damping effects in superfluid mixtures of Bose and Fermi gases [J].
Zheng, Dong-Chen ;
Liao, Yu-Xin ;
Lin, Wen ;
Liao, Renyuan .
PHYSICAL REVIEW A, 2024, 109 (02)
[32]   Verification of an analytic fit for the vortex core profile in superfluid Fermi gases [J].
Verhelst, Nick ;
Klimin, Serghei ;
Tempere, Jacques .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2017, 533 :96-100
[33]   Josephson Critical Currents and Related Effects in Ultracold Atomic Superfluid Sytems [J].
Piselli, Verdiana ;
Pisani, Leonardo ;
Strinati, Giancarlo Calvanese .
CONDENSED MATTER, 2024, 9 (04)
[34]   Optical trapping and fundamental studies of atomic Fermi gases [J].
Thomas, J. E. ;
Joseph, J. ;
Clancy, B. ;
Luo, L. ;
Kinast, J. ;
Turlapov, A. .
OPTICAL TRAPPING AND OPTICAL MICROMANIPULATION III, 2006, 6326
[35]   Frequency shift and mode coupling of the collective modes of superfluid Fermi gases in the BCS-BEC crossover [J].
Zhou, Yu ;
Wen, Wen ;
Huang, Guoxiang .
PHYSICAL REVIEW B, 2008, 77 (10)
[36]   Dynamics of dark solitons in superfluid Fermi gases in the BCS-BEC crossover [J].
Wen, Wen ;
Huang, Guoxiang .
PHYSICAL REVIEW A, 2009, 79 (02)
[37]   Theory of the normal-superfluid interface in population-imbalanced Fermi gases [J].
Baur, Stefan K. ;
Basu, Sourish ;
De Silva, Theja N. ;
Mueller, Erich J. .
PHYSICAL REVIEW A, 2009, 79 (06)
[38]   Anomalous density for Bose gases at finite temperature [J].
Boudjemaa, A. ;
Benarous, M. .
PHYSICAL REVIEW A, 2011, 84 (04)
[39]   Thermal conductivity and sound attenuation in dilute atomic Fermi gases [J].
Braby, Matt ;
Chao, Jingyi ;
Schaefer, Thomas .
PHYSICAL REVIEW A, 2010, 82 (03)
[40]   Second sound and the density response function in uniform superfluid atomic gases [J].
Hu, H. ;
Taylor, E. ;
Liu, X-J ;
Stringari, S. ;
Griffin, A. .
NEW JOURNAL OF PHYSICS, 2010, 12
12345