Squeezed-Light Optical Magnetometry

被引：184

作者：

Wolfgramm, Florian ^{[1
]}

Cere, Alessandro ^{[1
]}

Beduini, Federica A. ^{[1
]}

Predojevic, Ana ^{[1
]}

Koschorreck, Marco ^{[1
]}

Mitchell, Morgan W. ^{[1
]}

机构：

[1] Inst Ciencies Fotoniques, Castelldefels 08860, Barcelona, Spain

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 05期

关键词：

ATOMIC MAGNETOMETER; QUANTUM-NOISE; ORIENTATION; ALIGNMENT;

D O I：

10.1103/PhysRevLett.105.053601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate a light-shot-noise-limited magnetometer based on the Faraday effect in a hot unpolarized ensemble of rubidium atoms. By using off-resonant, polarization-squeezed probe light, we improve the sensitivity of the magnetometer by 3.2 dB. The technique could improve the sensitivity of the most advanced magnetometers and quantum nondemolition measurements of atomic spin ensembles.

引用

页数：4

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