The scissors oscillation of a quasi two-dimensional Bose gas as a local signature of superfluidity

被引：2

作者：

De Rossi, Camilla ^{[1
,2
]}

Dubessy, Romain ^{[1
,2
]}

Merloti, Karina ^{[1
,2
]}

de Herve, Mathieu de Goer ^{[1
,2
]}

Badr, Thomas ^{[1
,2
]}

Perrin, Aurelien ^{[1
,2
]}

Longchambon, Laurent ^{[1
,2
]}

Perrin, Helene ^{[1
,2
]}

机构：

[1] Univ Paris 13, Sorbonne Paris Cite, Phys Lasers Lab, F-93430 Villetaneuse, France

[2] CNRS, UMR 7538, F-93430 Villetaneuse, France

来源：

VII INTERNATIONAL SYMPOSIUM AND YOUNG SCIENTISTS SCHOOL MODERN PROBLEMS OF LASER PHYSICS | 2017年 / 793卷

关键词：

D O I：

10.1088/1742-6596/793/1/012023

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We test the superfluid character of a two-dimensional Bose gas confined in an anisotropic harmonic trap through the frequency of the scissors mode. We show that a local analysis of this frequency allows to evidence the boundary between a superfluid phase at the centre of the cloud and a thermal phase at the edge. The location of this boundary agrees well with the prediction of the Berezinskii-Kosterlitz-Thouless theory within local density approximation.

引用

页数：3

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