Real-time quantum feedback control with cold alkali atoms

被引：0
|
作者：
Geremia, J. M. [1 ]
机构：
[1] Univ New Mexico, CALTECH, Dept Phys & Astron, Mexico City, DF, Mexico
来源：
QUANTUM INFORMATION WITH CONTINOUS VARIABLES OF ATOMS AND LIGHT | 2007年
关键词：
D O I：
10.1142/9781860948169_0024
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This chapter describes recent experiments involving continuous measurement and quantum feedback control of collective spin in a cloud of cold alkali atoms. While measurement by itself can generate entanglement between different atoms in the sample by virtue of conditional spin-squeezing, the squeezed state produced in any individual instance of the measurement is randomly distributed. Incorporating real-time feedback control into the observation process suppresses the statistical dispersion of the measurement outcome so that the same a posteriori state is achieved in every instance of the feedback-stabilized measurement.
引用
收藏
页码：487 / 511
页数：25
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