Tripartite Entanglement in an Atom-Cavity-Optomechanical System

被引：7
作者：
Liao, Qinghong [1 ,2 ]
Ye, Yang [1 ]
Jin, Peng [1 ]
Zhou, Nanrun [1 ]
Nie, Wenjie [3 ]
机构：
[1] Nanchang Univ, Dept Elect Informat Engn, Nanchang 330031, Jiangxi, Peoples R China
[2] Univ Sci & Technol China, CAS Key Lab Quantum Informat, Hefei 230026, Peoples R China
[3] East China Jiaotong Univ, Dept Appl Phys, Nanchang 330013, Jiangxi, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2018年 / 57卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Tripartite entanglement; pi-tangle; Cavity-optomechanical system; Quantum information;
D O I：
10.1007/s10773-017-3661-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate tripartite entanglement in an atom-cavity-optomechanical system consisting of a two-level atom coupled to a cavity with an oscillating mirror at one end. The maximally entangled state between the atom, the field and the oscillating mirror can be prepared in the ideal case. It is shown that the atomic coherent angle that is relatively small makes tripartite entanglement much stronger against dissipative effects in a finite time interval. The parameter k plays a very important role in the oscillating frequency of the tripartite entanglement. More importantly, the pi-tangle decays more quickly with the increasing of spontaneous emission rate gamma and mean photon number n.
引用
收藏
页码：1319 / 1337
页数：19
相关论文
共 24 条
  • [1] LIGO - THE LASER-INTERFEROMETER-GRAVITATIONAL-WAVE-OBSERVATORY
    ABRAMOVICI, A
    ALTHOUSE, WE
    DREVER, RWP
    GURSEL, Y
    KAWAMURA, S
    RAAB, FJ
    SHOEMAKER, D
    SIEVERS, L
    SPERO, RE
    THORNE, KS
    VOGT, RE
    WEISS, R
    WHITCOMB, SE
    ZUCKER, ME
    [J]. SCIENCE, 1992, 256 (5055) : 325 - 333
  • [2] [Anonymous], 2009, Physics, DOI DOI 10.1103/PHYSICS.2.40
  • [3] Quantum optomechanics
    Aspelmeyer, Markus
    Meystre, Pierre
    Schwab, Keith
    [J]. PHYSICS TODAY, 2012, 65 (07) : 29 - 35
  • [4] Scheme to probe the decoherence of a macroscopic object
    Bose, S
    Jacobs, K
    Knight, PL
    [J]. PHYSICAL REVIEW A, 1999, 59 (05): : 3204 - 3210
  • [5] QUANTUM-MECHANICAL RADIATION-PRESSURE FLUCTUATIONS IN AN INTERFEROMER
    CAVES, CM
    [J]. PHYSICAL REVIEW LETTERS, 1980, 45 (02) : 75 - 79
  • [6] Self-cooling of a movable mirror to the ground state using radiation pressure
    Dantan, A.
    Genes, C.
    Vitali, D.
    Pinard, M.
    [J]. PHYSICAL REVIEW A, 2008, 77 (01)
  • [7] Short-Range Force Detection Using Optically Cooled Levitated Microspheres
    Geraci, Andrew A.
    Papp, Scott B.
    Kitching, John
    [J]. PHYSICAL REVIEW LETTERS, 2010, 105 (10)
  • [8] Establishing Einstein-Poldosky-Rosen Channels between Nanomechanics and Atomic Ensembles
    Hammerer, K.
    Aspelmeyer, M.
    Polzik, E. S.
    Zoller, P.
    [J]. PHYSICAL REVIEW LETTERS, 2009, 102 (02)
  • [9] Cavity optomechanical coupling assisted by an atomic gas
    Ian, H.
    Gong, Z. R.
    Liu, Yu-xi
    Sun, C. P.
    Nori, Franco
    [J]. PHYSICAL REVIEW A, 2008, 78 (01):
  • [10] Effective Hamiltonian theory and its applications in quantum information
    James, Daniel F. V.
    Jerke, Jonathan
    [J]. CANADIAN JOURNAL OF PHYSICS, 2007, 85 (06) : 625 - 632
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