Partial Trace Method for Deriving Density Operators of Light Field

With the help of technique of integration within an ordered product of operators we can fully display the partial trace method to deduce some new density operators of light field. The general form of single-mode density operator is derived in this way from a normalized two-mode generalized squeezed...

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Bibliographic Details
Published inCommunications in theoretical physics Vol. 53; no. 1; pp. 45 - 48
Main Author 范洪义 唐绪兵 胡利云
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.01.2010
Subjects
一般形式
光场
密度算符
广义压缩
微量元素
正常化
纯态
追踪法
Online AccessGet full text
ISSN0253-6102
DOI10.1088/0253-6102/53/1/10

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Summary:With the help of technique of integration within an ordered product of operators we can fully display the partial trace method to deduce some new density operators of light field. The general form of single-mode density operator is derived in this way from a normalized two-mode generalized squeezed pure state density operator.
Bibliography:Q581
IWOP technique, partial trace method, two-mode generalized squeezed pure state
11-2592/O3
O431
ISSN:0253-6102
DOI:10.1088/0253-6102/53/1/10