Quantum phase transition in space in a ferromagnetic spin-1 Bose-Einstein condensate

被引：29

作者：

Damski, Bogdan ^{[1
]}

Zurek, Wojciech H. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

来源：

NEW JOURNAL OF PHYSICS | 2009年 / 11卷

关键词：

COSMOLOGICAL EXPERIMENTS; SYMMETRY-BREAKING; STRING FORMATION; SUPERFLUID HE-3; LIQUID-CRYSTALS; MECHANISM; DYNAMICS; UNIVERSE;

D O I：

10.1088/1367-2630/11/6/063014

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A quantum phase transition between the symmetric (polar) phase and the phase with broken symmetry can be induced in a ferromagnetic spin-1 Bose-Einstein condensate in space (rather than in time). We consider such a phase transition and show that the transition region in the vicinity of the critical point exhibits scalings that reflect a compromise between the rate at which the transition is imposed (i.e. the gradient of the control parameter) and the scaling of the divergent healing length in the critical region. Our results suggest a method for the direct measurement of the scaling exponent nu.

引用

页数：11

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