Direct nondestructive imaging of magnetization in a spin-1 Bose-Einstein gas

被引：198

作者：

Higbie, JM ^{[1
]}

Sadler, LE ^{[1
]}

Inouye, S ^{[1
]}

Chikkatur, AP ^{[1
]}

Leslie, SR ^{[1
]}

Moore, KL ^{[1
]}

Savalli, V ^{[1
]}

Stamper-Kurn, DM ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.95.050401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Polarization-dependent phase-contrast imaging is used to resolve the spatial magnetization profile of an optically trapped ultracold gas. This probe is applied to Larmor precession of degenerate and nondegenerate spin-1 Rb-87 gases. Transverse magnetization of the Bose-Einstein condensate persists for the condensate lifetime, with a spatial response to magnetic field inhomogeneities consistent with a mean-field model of interactions. In comparison, the magnetization of the noncondensed gas decoheres rapidly. Rotational symmetry implies that the Larmor frequency of a spinor condensate be density independent, and thus suitable for precise magnetometry with high spatial resolution.

引用

页数：4

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