Restoring integrability in one-dimensional quantum gases by two-particle correlations

被引：8

作者：

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

Schmiedmayer, J. ^{[1
]}

机构：

[1] Osterreich Univ, Atominst, A-1020 Vienna, Austria

[2] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 06期

关键词：

boson systems; quantum statistical mechanics; SCATTERING;

D O I：

10.1103/PhysRevA.79.061603

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show that thermalization and the breakdown of integrability in the one-dimensional Lieb-Liniger model caused by local three-body elastic interactions is suppressed by pairwise quantum correlations when approaching the strongly correlated regime. If the relative momentum k is small compared to the two-body coupling constant c the three-particle scattering state is suppressed by a factor of (k/c)(12). This demonstrates that in one-dimensional quantum systems it is not the freeze out of two body collisions but the strong quantum correlations which ensures integrability.

引用

页数：4

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