Cooling of a One-Dimensional Bose Gas

被引：47

作者：

Rauer, B. ^{[1
]}

Grisins, P. ^{[1
]}

Mazets, I. E. ^{[1
,2
]}

Schweigler, T. ^{[1
]}

Rohringer, W. ^{[1
]}

Geiger, R. ^{[1
]}

Langen, T. ^{[1
]}

Schmiedmayer, J. ^{[1
]}

机构：

[1] TU Wien, Atominst, Vienna Ctr Quantum Sci & Technol, Stadionallee 2, A-1020 Vienna, Austria

[2] Wolfgang Pauli Inst, A-1090 Vienna, Austria

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 03期

基金：

奥地利科学基金会;

关键词：

MANY-BODY SYSTEM; QUANTUM; HYDROGEN; ATOMS;

D O I：

10.1103/PhysRevLett.116.030402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We experimentally study the dynamics of a degenerate one-dimensional Bose gas that is subject to a continuous outcoupling of atoms. Although standard evaporative cooling is rendered ineffective by the absence of thermalizing collisions in this system, we observe substantial cooling. This cooling proceeds through homogeneous particle dissipation and many-body dephasing, enabling the preparation of otherwise unexpectedly low temperatures. Our observations establish a scaling relation between temperature and particle number, and provide insights into equilibration in the quantum world.

引用

页数：5

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