Pairing in spin polarized two-species fermionic mixtures with mass asymmetry

被引：3
|
作者：
Silotri, S. [1 ]
Angom, D. [1 ]
Mishra, H. [1 ]
Mishra, A. [2 ]
机构：
[1] Phys Res Lab, Div Theoret Phys, Ahmadabad 380009, Gujarat, India
[2] Indian Inst Technol, Dept Phys, New Delhi 110016, India
来源：
EUROPEAN PHYSICAL JOURNAL D | 2008年 / 49卷 / 03期
关键词：
D O I：
10.1140/epjd/e2008-00169-0
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We discuss on the pairing mechanism of fermions with mismatch in their Fermi momenta due to a mass asymmetry. Using a variational ansatz for the ground state we also discuss the BCS-BEC crossover of this system. It is shown that the breached pairing solution with a single Fermi surface is stable in the BEC regime. We also include the temperatures effect on the fermion pairing within an approximation that is valid for temperatures much below the critical temperature.
引用
收藏
页码：383 / 390
页数：8
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