Equation of state and Kosterlitz-Thouless transition temperature in two-dimensional Fermi gases: An analytical approach

被引：9
|
作者：
Klawunn, Michael [1 ]
机构：
[1] Leibniz Univ Hannover, Inst Theoret Phys, Appelstr 2, D-30169 Hannover, Germany
来源：
PHYSICS LETTERS A | 2016年 / 380卷 / 34期
关键词：
Ultracold gases; Trapped gases; Degenerate Fermi gases; Two-dimensional gases; Thermodynamic functions and equations of state;
D O I：
10.1016/j.physleta.2016.06.015
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study Fermi gases in two dimensions at low temperatures with attractive interactions. Analytic results are derived for the equation of state and the Kosterlitz-Thouless transition temperature as functions of the two-body binding energy and the density of the gas. Our results for the equation of state and the pressure of the gas strongly deviate from the mean field predictions. However, they are in reasonable agreement with Monte-Carlo calculations and recent experiments with cold atomic gases. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：2650 / 2653
页数：4
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