Quantum phases of Bose-Fermi mixtures in optical lattices

被引：2
作者：
Noda, K. [1 ]
Peters, R. [1 ]
Kawakami, N. [1 ]
Pruschke, Th [2 ]
机构：
[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[2] Univ Gottingen, Inst Theoret Phys, D-37077 Gottingen, Germany
来源：
INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS (SCES 2010) | 2011年 / 273卷
基金：
日本学术振兴会;
关键词：
MEAN-FIELD THEORY; RENORMALIZATION-GROUP; DIMENSIONS; SYSTEMS;
D O I：
10.1088/1742-6596/273/1/012146
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We consider a mixture of interacting bosons and fermions in optical lattices described by the Bose-Fermi Hubbard Hamiltonian. To treat bosonic degrees of freedom, we use a generalized dynamical mean field theory (GDMFT). By combining the GDMFT with the numerical renormalization group method, we revisit the zero-temperature phase diagram with particular emphasis on many-body effects in a supersolid state and discuss the origin of an anomalous peak structure emerging in the density of states for fermions.
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页数：4
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