Four-mode coherent-entangled state and its application

A new kind of four-mode continuous variable coherent-entangled state is proposed in the Fock space by using the technique of integration within an ordered product, which exhibits both the properties of a coherent state and an entangled state, and spans a complete and orthonormal representation. The...

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Published inChinese physics B Vol. 21; no. 1; pp. 79 - 86
Main Author 李洪奇 任廷琦 张运海 徐兴磊
Format Journal Article
LanguageEnglish
Published 2012
Subjects
Beam splitters
Coherence
Conjugates
Construction
Entangled states
Fock空间
Fourier transformation
Operators
Representations
傅立叶变换
双模压缩
应用程序
相干态
纠缠态
连续变量
集成技术
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/21/1/010305

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Summary:A new kind of four-mode continuous variable coherent-entangled state is proposed in the Fock space by using the technique of integration within an ordered product, which exhibits both the properties of a coherent state and an entangled state, and spans a complete and orthonormal representation. The conjugate state of the four-mode continuous variable coherent-entangled state is derived by using the Fourier transformation. Moreover, a simple experimental protocol of generating a four-mode continuous variable coherent-entangled state is proposed by using beam splitters. As applications of this four-mode continuous variable coherent-entangled state, a four-mode entangled state and a four-mode squeezing-Fresnel operator are constructed.
Bibliography:coherent-entangled state, beam splitter, squeezing-Fresnel operator, technique of inte-gration within an ordered product
Li Hong-Qi, Ren Ting-Qi, Zhang Yun-Hai, and Xu Xing-Lei（ a） Department of Physics, Qufu Normal University, Qufu 273165, China b） Department of Physics, Heze University, Heze 274015, China c） Key Laboratory of Quantum Communication and Calculation, Heze University, Heze 274015, China
11-5639/O4
A new kind of four-mode continuous variable coherent-entangled state is proposed in the Fock space by using the technique of integration within an ordered product, which exhibits both the properties of a coherent state and an entangled state, and spans a complete and orthonormal representation. The conjugate state of the four-mode continuous variable coherent-entangled state is derived by using the Fourier transformation. Moreover, a simple experimental protocol of generating a four-mode continuous variable coherent-entangled state is proposed by using beam splitters. As applications of this four-mode continuous variable coherent-entangled state, a four-mode entangled state and a four-mode squeezing-Fresnel operator are constructed.
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ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/1/010305