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

• 来源期刊: 中国物理B（英文版）
• 关键词: finite-dimensional pair coherent state entangled state
• 年，卷（期）: 2019,（12）
• 页码范围: 206-212
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/ab4f5f

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.