Universal scaling in a trapped Fermi super-fluid in the BCS-unitarity crossover

被引:25
作者
Adhikari, S. K. [1 ]
机构
[1] Sao Paulo State Univ, Inst Fis Teor, UNESP, BR-01140070 Sao Paulo, Brazil
基金
巴西圣保罗研究基金会;
关键词
Fermi super-fluid; BCS-unitarity crossover; universal scaling; BOSE-EINSTEIN CONDENSATION; DENSITY-FUNCTIONAL THEORY; QUANTUM-MECHANICS; GAS; SUPERCONDUCTIVITY;
D O I
10.1002/lapl.200910090
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Using numerical simulation based-on a density-functional equation for a trapped Fermi-super-fluid valid along the BCS-unitarity crossover, we establish robust scaling over many orders of magnitude in the observables of the system as a function of fermion number. This scaling allows to-predict the static properties of the system, such as energy, chemical-potential, etc., for a large number of fermions over the crossover, from the knowledge of those for a small number (similar to 4-10) of fermions. [GRAPHICS] Energy (E) and chemical potential (mu) of a trapped Fermi superfluid as a function of number N of atorns(C) 2009 by Astro Ltd. Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA
引用
收藏
页码:901 / 905
页数:5
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