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
  • [1] Wigner functions of two-mode excited squeezed vacuum states
    Meng, Xiangguo
    Wang, Jisuo
    Liang, Baolong
    Guangxue Xuebao/Acta Optica Sinica, 2007, 27 (09): : 1700 - 1705
  • [2] Two-mode Wigner operator in ξ| representation and τ| representation
    Song, TQ
    Fan, HY
    COMMUNICATIONS IN THEORETICAL PHYSICS, 2001, 36 (06) : 695 - 698
  • [3] Teleportation of quantum states by means of two-mode squeezed vacuum
    Song, TQ
    ACTA PHYSICA SINICA, 2004, 53 (10) : 3358 - 3362
  • [4] Two-mode squeezed vacuum states in tomographic-probability representation
    Loran V. Akopyan
    Vladimir I. Man’ko
    Journal of Russian Laser Research, 2010, 31 : 520 - 532
  • [5] TWO-MODE SQUEEZED VACUUM STATES IN TOMOGRAPHIC-PROBABILITY REPRESENTATION
    Akopyan, Loran V.
    Man'ko, Vladimir I.
    JOURNAL OF RUSSIAN LASER RESEARCH, 2010, 31 (06) : 520 - 532
  • [6] A new representation for two-mode squeezed states
    Fan, HY
    Jiang, NQ
    Lu, HL
    OPTICS COMMUNICATIONS, 2004, 234 (1-6) : 277 - 279
  • [7] Thermal counting statistics in an atomic two-mode squeezed vacuum state
    Perrier, Maxime
    Amodjee, Ziyad
    Dussarrat, Pierre
    Dareau, Alexandre
    Aspect, Alain
    Cheneau, Marc
    Boiron, Denis
    Westbrook, Christoph, I
    SCIPOST PHYSICS, 2019, 7 (01):
  • [8] Two-mode squeezed vacuum state coupled to the common thermal reservoir
    Prauzner-Bechcicki, JS
    JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2004, 37 (15): : L173 - L181
  • [9] Photon-number distribution of two-mode squeezed thermal states by entangled state representation
    Hu Li-Yun
    Wang Shuai
    Zhang Zhi-Ming
    CHINESE PHYSICS B, 2012, 21 (06)
  • [10] Photon-number distribution of two-mode squeezed thermal states by entangled state representation
    胡利云
    王帅
    张智明
    Chinese Physics B, 2012, (06) : 227 - 230
12345