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.

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页码：1244 / 1249

页数：6

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