Quantum fluctuation of two-mode squeezed thermal vacuum states and the thermal Wigner operator studied by virtue of ⟨η| representation

被引：2
|
作者：
Fan, HY [1 ]
Wang, H
机构：
[1] Shanghai Jiao Tong Univ, Dept Appl Phys, Shanghai 200030, Peoples R China
[2] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2001年 / 15卷 / 12-13期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1142/S0217984901001872
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Based on the < eta \ representation in Thermo Field Dynamics(3) we introduce the thermal Wigner operator, with which we reach the conclusion that due to the thermal effect the quantum fluctuation of two-mode squeezed vacuum state increases by a factor cosh 2 theta, where tanh theta = exp(-hw/2kT). We also mathematically analyse the formalism of Thermo Field Dynamics in the context of entanglement theory.
引用
收藏
页码：397 / 406
页数：10
相关论文
共 50 条
  • [21] Entanglement behaviors of two-mode squeezed thermal states in two different environments
    S. -H. Xiang
    K. -H. Song
    W. Wen
    Z. -G. Shi
    The European Physical Journal D, 2011, 62
  • [22] Analytical Study of Two-Mode Thermal Squeezed States and Black Holes
    Venkataratnam, K. K.
    INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2017, 56 (02) : 377 - 385
  • [23] Analytical Study of Two-Mode Thermal Squeezed States and Black Holes
    K. K. Venkataratnam
    International Journal of Theoretical Physics, 2017, 56 : 377 - 385
  • [24] Entanglement behaviors of two-mode squeezed thermal states in two different environments
    Xiang, S. -H.
    Song, K. -H.
    Wen, W.
    Shi, Z. -G.
    EUROPEAN PHYSICAL JOURNAL D, 2011, 62 (02): : 289 - 296
  • [25] Two-mode Wigner operator in (eta vertical bar representation
    Wu, HJ
    Fan, HY
    MODERN PHYSICS LETTERS B, 1997, 11 (13): : 549 - 554
  • [26] Entanglement of one- and two-mode combination squeezed thermal states and its application in quantum teleportation
    Liu Shi-You
    Zheng Kai-Min
    Jia Fang
    Hu Li-Yun
    Xie Fang-Sen
    ACTA PHYSICA SINICA, 2014, 63 (14)
  • [27] Quantum Entanglement and Nonlocality Properties of Two-Mode Squeezed Thermal States in a Common-Reservoir Model
    向少华
    宋克慧
    文伟
    施振刚
    CommunicationsinTheoreticalPhysics, 2011, 55 (02) : 232 - 238
  • [28] Quantum Entanglement and Nonlocality Properties of Two-Mode Squeezed Thermal States in a Common-Reservoir Model
    Xiang Shao-Hua
    Song Ke-Hui
    Wen Wei
    Shi Zhen-Gang
    COMMUNICATIONS IN THEORETICAL PHYSICS, 2011, 55 (02) : 232 - 238
  • [29] Quantum sensing of antiferromagnetic magnon two-mode squeezed vacuum
    Roemling, Anna-Luisa E.
    Kamra, Akashdeep
    PHYSICAL REVIEW B, 2024, 109 (17)
  • [30] An intuitive expression for inseparability condition of a two-mode squeezed vacuum state in a thermal environment
    Li, FL
    Li, HR
    CHINESE PHYSICS LETTERS, 2004, 21 (06) : 991 - 994
12345