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.

引用

页数：4

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