Boson-fermion pairing in Bose-Fermi mixtures on one-dimensional optical lattices

被引:22
作者
Barillier-Pertuisel, X. [1 ,2 ]
Pittel, S. [3 ,4 ]
Pollet, L. [5 ]
Schuck, P. [1 ,2 ,6 ]
机构
[1] CNRS, IN2P3, UMR8608, Inst Phys Nucl, F-91406 Orsay, France
[2] Univ Paris Sud, F-91406 Orsay, France
[3] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA
[4] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA
[5] ETH, Inst Theoret Phys, CH-8093 Zurich, Switzerland
[6] Univ Grenoble 1, CNRS, Lab Phys & Modelisat Milieux Condenses, F-38042 Grenoble, France
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevA.77.012115
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Boson-fermion pairing is considered in a discrete environment of bosons and fully spin-polarized fermions, coupled via an attractive Bose-Fermi Hubbard Hamiltonian in one dimension. The results of the T-matrix approximation for particles of equal mass and at double half-filling are compared with the results of exact diagonalization and with quantum Monte Carlo results. Satisfactory agreement for most quantities is found. The appearance of a stable, weak-coupling pairing mode is also confirmed.
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页数:5
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