Abstract The effect of an imperfect system on the measurement of squeezing is studied. It is shown that the imperfectly efficient detectors and the unbalance of the beam-splitter will reduce the measured squeezing. The effects on quadrat ure phase squeezing and photon number squeezing are different from the usual balanced homodyne detection.
Received: 14 August 1997
Accepted manuscript online:
(Quantum fluctuations, quantum noise, and quantum jumps)
Fund: Project supported by the National Natural Science Foundation of China.
Cite this article:
ZHANG TIAN-CAI (张天才), ZHANG JUN-XIANG (张俊香), XIE CHANG-DE (谢常德), PENG KUN-CHI (彭堃墀) HOW DOES AN IMPERFECT SYSTEM AFFECT THE MEASUREMENT OF SQUEEZING? 1998 Acta Physica Sinica (Overseas Edition) 7 340
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