Quantum phases in an optical lattice

被引：436

作者：

van Oosten, D

van der Straten, P

Stoof, HTC

机构：

[1] Univ Utrecht, Inst Theoret Phys, NL-3584 CC Utrecht, Netherlands

[2] Univ Utrecht, Debye Inst, NL-3584 CC Utrecht, Netherlands

来源：

PHYSICAL REVIEW A | 2001年 / 63卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.63.053601

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the zero-temperature phase diagram of bosonic atoms in an optical lattice, using two different mean-field approaches. The phase diagram consists of various insulating phases and a superfluid phase. We explore the nature of the insulating phase by calculating both the quasiparticle and quasihole dispersion relation. We also determine the parameters of our single band Bose-Hubbard model in terms of the microscopic parameters of the atoms in the optical lattice.

引用

收藏

页码：536011 / 536011

页数：12

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