SPIN SQUEEZING AND REDUCED QUANTUM NOISE IN SPECTROSCOPY

被引：898

作者：

WINELAND, DJ ^{[1
]}

BOLLINGER, JJ ^{[1
]}

ITANO, WM ^{[1
]}

MOORE, FL ^{[1
]}

HEINZEN, DJ ^{[1
]}

机构：

[1] UNIV TEXAS, DEPT PHYS, AUSTIN, TX 78712 USA

来源：

PHYSICAL REVIEW A | 1992年 / 46卷 / 11期

关键词：

D O I：

10.1103/PhysRevA.46.R6797

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the quantum-mechanical noise in spectroscopic experiments on ensembles of N two-level (or spin-1/2) systems where transitions are detected by measuring changes in state population. By preparing correlated states, here called squeezed spin states, we can increase the signal-to-nose ratio in spectroscopy (by approximately N1/2 in certain cases) over that found in experiments using uncorrelated states. Possible experimental demonstrations of this enhancement are discussed.

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页码：R6797 / R6800

页数：4

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