Squeezing more from a quantum nondemolition measurement

被引：7
|
作者：
Buchler, BC [1 ]
Lam, PK
Bachor, HA
Andersen, UL
Ralph, TC
机构：
[1] Australian Natl Univ, Fac Sci, Dept Phys, Canberra, ACT 0200, Australia
[2] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark
[3] Univ Queensland, Dept Phys, St Lucia, Qld 4072, Australia
来源：
PHYSICAL REVIEW A | 2002年 / 65卷 / 01期
关键词：
D O I：
10.1103/PhysRevA.65.011803
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We use a stable, 5 dB, amplitude squeezed source for a quantum nondomolition (QND) experiment. The performance of our QND system is enhanced by an electro-optic feedforward loop which improve,, the signal transfer efficiency. At best, we measure a total signal transfer of 1.81 and conditional variance of 0.55.
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页数：4
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