A strongly attractive Fermi gas in an optical lattice

被引：2
作者：
Fialko, O. [2 ]
Gammal, A. [1 ]
Ziegler, K. [2 ]
机构：
[1] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, Brazil
[2] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany
来源：
PHYSICS LETTERS A | 2010年 / 374卷 / 37期
基金：
巴西圣保罗研究基金会;
关键词：
Fermi mixtures; Hubbard model; BEC-BCS; BOSE-EINSTEIN CONDENSATION; CROSSOVER; TRANSITION; SUPERFLUID; INSULATOR; WEAK; BCS;
D O I：
10.1016/j.physleta.2010.07.038
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study strongly attractive fermions in an optical lattice superimposed by a trapping potential. We calculate the densities of fermions and condensed bound molecules at zero temperature. There is a competition between dissociated fermions and molecules leading to a reduction of the density of fermions at the trap center. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：3869 / 3874
页数：6
相关论文
共 42 条
[21]   Resonance superfluidity in a quantum degenerate Fermi gas [J].
Holland, M ;
Kokkelmans, SJJMF ;
Chiofalo, ML ;
Walser, R .
PHYSICAL REVIEW LETTERS, 2001, 87 (12) :1-120406
[22]   Population-imbalanced fermions in harmonically trapped optical lattices [J].
Iskin, M. ;
Williams, C. J. .
PHYSICAL REVIEW A, 2008, 78 (01)
[23]   Fermi-Fermi mixtures in the strong-attraction limit [J].
Iskin, M. ;
de Melo, C. A. R. Sa .
PHYSICAL REVIEW A, 2008, 77 (01)
[24]   Cold bosonic atoms in optical lattices [J].
Jaksch, D ;
Bruder, C ;
Cirac, JI ;
Gardiner, CW ;
Zoller, P .
PHYSICAL REVIEW LETTERS, 1998, 81 (15) :3108-3111
[25]   Bose-Einstein condensation of molecules [J].
Jochim, S ;
Bartenstein, M ;
Altmeyer, A ;
Hendl, G ;
Riedl, S ;
Chin, C ;
Denschlag, JH ;
Grimm, R .
SCIENCE, 2003, 302 (5653) :2101-2103
[26]  
KETTERLE W, 2007, P VAR ENR FERM SUMM
[27]  
Leggett A. J., 2006, Quantum liquids
[28]  
LEGGETT AJ, 1980, J PHYS C SOLID STATE, V41, P7
[29]   Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond [J].
Lewenstein, Maciej ;
Sanpera, Anna ;
Ahufinger, Veronica ;
Damski, Bogdan ;
Sen, Aditi ;
Sen, Ujjwal .
ADVANCES IN PHYSICS, 2007, 56 (02) :243-379
[30]   Interacting bosons in an optical lattice [J].
Moseley, Christopher ;
Fialko, Oleksandr ;
Ziegler, Klaus .
ANNALEN DER PHYSIK, 2008, 17 (08) :561-608
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