Visibility of cold atomic gases in optical lattices for finite temperatures

被引：25

作者：

Hoffmann, Alexander ^{[1
]}

Pelster, Axel ^{[2
,3
]}

机构：

[1] Univ Munich, Arnold Sommerfeld Ctr, D-80333 Munich, Germany

[2] Univ Duisburg Essen, Fachbereich Phys, D-47048 Duisburg, Germany

[3] Free Univ Berlin, Fachbereich Phys, D-14195 Berlin, Germany

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 05期

关键词：

boson systems; optical lattices; QUANTUM COMPUTATION; BOSONIC ATOMS; BOSE-GAS; LOCALIZATION; SUPERFLUID; INSULATOR; FIELD;

D O I：

10.1103/PhysRevA.79.053623

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In nearly all experiments with ultracold atoms time-of-flight pictures are the only data available. In this paper we present an analytical strong-coupling calculation for those time-of-flight pictures of bosons in a three-dimensional optical lattice in the Mott phase. This allows us to determine the visibility, which quantifies the contrast of peaks in the time-of-flight pictures, and we suggest how to use it as a thermometer.

引用

页数：9

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