Studying bi-partite entangled state representations via the integration over ket-bra operators in -ordering or -ordering
Studying bi-partite entangled state representations via the integration over ket-bra operators in -ordering or -ordering作者机构：Department of Physics Ningbo University Ningbo 315211 China
出 版 物：《Frontiers of physics》 (物理学前沿（英文版）)
年 卷 期：2014年第9卷第4期
页 面：460-464页
核心收录：
学科分类：0821[工学-纺织科学与工程] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 070205[理学-凝聚态物理] 08[工学] 0704[理学-天文学] 082104[工学-服装设计与工程] 0702[理学-物理学]
基 金：This work was supported by the National Natural Science Foundation of China under grant No. 11175113
主 题：Keywords integration over ket -bra operators -ordering -ordering entangled staterepresentation
摘 要：For two particles＇ relative position and total momentum we have introduced the entangled state representation ｜μ〉, and its conjugate state｜ξ〉 In this work, for the first time; we study theln via the integration over ket bra operators in -ordering or -ordering, where Q-ordering means all Qs are to the left, of all Ps and -ordering means all Ps are to the left of all Qs. In this way we newly derive -ordered （or Q-ordered） expansion formulas of the two-mode squeezing operator which can show the squeezing effect on both the two-mode coordinate and momentum eigenstates. This tells that not only the integration over ket bra operators within normally ordered, but also within - ordered （or -ordered） are feasible and useful in developing quantum mechanical representation and transtbrlnation theory.
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