Finite-dimensional pair coherent state engendered via the nonlinear Bose operator realization and its Wigner phase-space distributions

doi:10.1088/1674-1056/ab4f5f

中国物理B ›› 2019, Vol. 28 ›› Issue (12): 124206-124206.doi: 10.1088/1674-1056/ab4f5f

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Finite-dimensional pair coherent state engendered via the nonlinear Bose operator realization and its Wigner phase-space distributions

Jianming Liu(刘建明), Xiangguo Meng(孟祥国)

1 Department of Computer, Weifang Medical University, Weifang 261000, China;
2 Shandong Provincial Key Laboratory of Optical Communication Science and Technology, School of Physical Science and Information Engineering, Liaocheng University, Liaocheng 252059, China

收稿日期:2019-09-22 修回日期:2019-10-11 出版日期:2019-12-05 发布日期:2019-12-05
通讯作者: Jianming Liu, Xiangguo Meng E-mail:sdwfljm@126.com;mengxiangguo1978@sina.com

Finite-dimensional pair coherent state engendered via the nonlinear Bose operator realization and its Wigner phase-space distributions

Jianming Liu(刘建明)¹, Xiangguo Meng(孟祥国)²

1 Department of Computer, Weifang Medical University, Weifang 261000, China;
2 Shandong Provincial Key Laboratory of Optical Communication Science and Technology, School of Physical Science and Information Engineering, Liaocheng University, Liaocheng 252059, China

Received:2019-09-22 Revised:2019-10-11 Online:2019-12-05 Published:2019-12-05
Contact: Jianming Liu, Xiangguo Meng E-mail:sdwfljm@126.com;mengxiangguo1978@sina.com

摘要/Abstract

摘要： We theoretically analyze the photon number distribution, entanglement entropy, and Wigner phase-space distribution, considering the finite-dimensional pair coherent state (FDPCS) generated in the nonlinear Bose operator realization. Our results show that the photon number distribution is governed by the two-mode photon number sum q of the FDPCS, the entanglement of the FDPCS always increases quickly at first and then decreases slowly for any q, and the nonclassicality of the FDPCS for odd q is more stronger than that for even q.

关键词: finite-dimensional pair coherent state, entangled state

Abstract: We theoretically analyze the photon number distribution, entanglement entropy, and Wigner phase-space distribution, considering the finite-dimensional pair coherent state (FDPCS) generated in the nonlinear Bose operator realization. Our results show that the photon number distribution is governed by the two-mode photon number sum q of the FDPCS, the entanglement of the FDPCS always increases quickly at first and then decreases slowly for any q, and the nonclassicality of the FDPCS for odd q is more stronger than that for even q.

Key words: finite-dimensional pair coherent state, entangled state

中图分类号: (Quantum optics)

42.50.-p

05.30.-d (Quantum statistical mechanics) 03.65.-w (Quantum mechanics)

刘建明, 孟祥国. Finite-dimensional pair coherent state engendered via the nonlinear Bose operator realization and its Wigner phase-space distributions[J]. 中国物理B, 2019, 28(12): 124206-124206.

Jianming Liu(刘建明), Xiangguo Meng(孟祥国). Finite-dimensional pair coherent state engendered via the nonlinear Bose operator realization and its Wigner phase-space distributions[J]. Chin. Phys. B, 2019, 28(12): 124206-124206.

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Finite-dimensional pair coherent state engendered via the nonlinear Bose operator realization and its Wigner phase-space distributions

Finite-dimensional pair coherent state engendered via the nonlinear Bose operator realization and its Wigner phase-space distributions

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