Antiferromagnetic Spatial Ordering in a Quenched One-Dimensional Spinor Gas

被引：40

作者：

Vinit, A. ^{[1
]}

Bookjans, E. M. ^{[1
]}

de Melo, C. A. R. Sa ^{[1
]}

Raman, C. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 16期

基金：

美国国家科学基金会;

关键词：

CONDENSED MATTER; BOSE; DYNAMICS; STATES; SYSTEMS; DOMAINS; TRAPS;

D O I：

10.1103/PhysRevLett.110.165301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have experimentally observed the emergence of spontaneous antiferromagnetic spatial order in a sodium spinor Bose-Einstein condensate that was quenched through a magnetic phase transition. For negative values of the quadratic Zeeman shift, a gas initially prepared in the F = 1, m(F) = 0 state collapsed into a dynamically evolving superposition of all three spin projections, m(F) = 0, +/- 1. The quench gave rise to rich, nonequilibrium behavior where both nematic and magnetic spin waves were generated. We characterized the spatiotemporal evolution through two particle correlations between atoms in each pair of spin states. These revealed dramatic differences between the dynamics of the spin correlations and those of the spin populations. DOI: 10.1103/PhysRevLett.110.165301

引用

页数：5

共 40 条

[1] Prethermalization in quenched spinor condensates [J].