光学Mach-Zehnder 干涉仪的宇称测量研究

WANG Shuai，PEI Ming-xu，ZHU Xiao-qin

School of Mathematics and Physics，Jiangsu University of Technology，Changzhou，Jiangsu 213001，China

Received:2018-01-30 Accepted:2018-04-21 Online:2018-12-20 Published:2019-01-17

Abstract: Mach-Zehnder interferometer is an important optical device in quantum precision measurement.Considering

a general two-mode quantum pure state as a probe state，by using the Dirac symbol and the theory of

quantum representation transformation，we present a simple method to calculate the expectation value of parity operator

in the output state of a Mach-Zehnder interferometer.

Key words: parity measurement, MZI interferometer, Fock state, Dirac symbol

WANG Shuai, PEI Ming-xu, ZHU Xiao-qin. Research on parity measurement in optical Mach-Zehnder interferometer[J].College Physics, 2018, 37(12): 30-.

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