搜索

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

耗散环境下原子-库场相互作用系统中原子的偶极压缩特性

潘长宁 赵学辉 杨迪武 方卯发

引用本文:
Citation:

耗散环境下原子-库场相互作用系统中原子的偶极压缩特性

潘长宁, 赵学辉, 杨迪武, 方卯发

Dipole squeezing of atomic systems in dissipative environment

Fang Mao-Fa, Pan Chang-Ning, Zhao Xue-Hui, Yang Di-Wu
PDF
导出引用
  • 运用全量子理论并结合数值计算方法,研究了处于真空库和热库中原子系统的偶极压缩特性,讨论了原子的初态以及热库的平均光子数对原子偶极压缩特性的影响.研究表明:真空库中,初始处于基态和激发态的叠加态原子,当激发态的粒子布居概率少于基态时,原子的偶极压缩无限接近于零而永远不消失,反之,原子的偶极压缩将在有限的时间内消失,热库中,不管原子初始处于什么态,其偶极压缩都在有限的时间内消失,并且随着热库的平均光子数的增大而消失得越快.
    The atomic squeezing effect in the dissipative environment is investigated by means of the quantum theory of damping-density operator approach and numerical calculations. The effects on the atomic dipole squeezing effect produced by the atomic initial state and mean photon number of the thermal reservoir are discussed. The results show that the atomic dipole squeezing declines asymptotically to zero, and doesn’t disappear in finite time if the population rate in the excited state is higher than the ground state in the atomic initial state in the vacuum reservoir. However, the squeezing effect always disappears in the thermal reservoir, irrespective of the atomic initial state. With increase of mean photon of the thermal reservoir, the squeezing effect disappears faster.
    • 基金项目: 国家自然科学基金(批准号:50874041)、湖南省教育厅自然科学基金(批准号:09C314)和湖南省自然科学基金(08JJ5036)资助的课题.
    [1]

    Walls D F 1983 Nature 306 141

    [2]

    Yuen H P 1976 Phys. Rev. A 13 2226

    [3]

    Peng J S, Li G X 1993 Phys. Rev. A 47 3167

    [4]

    Walls D F, Zoller P 1981 Phys. Rev. Lett. 47 709

    [5]

    Wodkiewicz K, Knight P L, Buckle S J, Barnett S M 1987 Phys. Rev. A 35 2567

    [6]

    Fan A P, Wang Z W, Sun N C 1995 Acta Phys. Sin. 44 536 (in Chinese) [范安辅、王志伟、孙年春 1995 物理学报 44 536]

    [7]

    Gu Q 1988 Acta Phys. Sin. 37 751 (in Chinese) [顾 樵 1988 物理学报 37 751]

    [8]

    Zhou P, Peng J S 1989 Acta Phys. Sin. 38 2044 (in Chinese) [周 鹏、彭金生 1989物理学报 38 2044]

    [9]

    Pan C N, Fang M F, Zheng X J, Hu Y H 2007 Chin. Phys. 16 1549

    [10]

    Fang M F, Liu X 2001 Chin. Phys. 10 720

    [11]

    Wu Y, Yang X X 1997 Phys. Rev. Lett. 78 3086

    [12]

    Wu Y 2001 Phys. Rev. A 63 052303

    [13]

    Chen X, Xia Y J 2010 Acta Phys. Sin. 59 0080 (in Chinese)[陈 星、夏云杰 2010 物理学报 59 0080]

    [14]

    Zhao J G, Sun C Y, Meng X G, Su J 2009 Acta Phys. Sin. 58 6985 (in Chinese)[赵建刚、孙长勇、孟祥国、苏 杰 2009 物理学报 58 6985]

    [15]

    Xu X X, Hu L Y, Fan H Y 2009 Chin. Phys. B 18 5139

    [16]

    Lin J C, Zheng X H, Cao Z L 2007 Acta Phys. Sin. 56 0837 (in Chinese) [林继成、郑小虎、曹卓良 2007 物理学报 56 0837]

    [17]

    Peng J S, Li G X 1996 Introduction of Modern Quantum Optics (Beijing: Science Press) (in Chinese) [彭金生、李高翔 1996 近代量子光学导论(北京:科学出版社)]

    [18]

    Scully M O, Zubairy M S 1997 Quantum Optics (Cambridge: Cambridge University Press)

  • [1]

    Walls D F 1983 Nature 306 141

    [2]

    Yuen H P 1976 Phys. Rev. A 13 2226

    [3]

    Peng J S, Li G X 1993 Phys. Rev. A 47 3167

    [4]

    Walls D F, Zoller P 1981 Phys. Rev. Lett. 47 709

    [5]

    Wodkiewicz K, Knight P L, Buckle S J, Barnett S M 1987 Phys. Rev. A 35 2567

    [6]

    Fan A P, Wang Z W, Sun N C 1995 Acta Phys. Sin. 44 536 (in Chinese) [范安辅、王志伟、孙年春 1995 物理学报 44 536]

    [7]

    Gu Q 1988 Acta Phys. Sin. 37 751 (in Chinese) [顾 樵 1988 物理学报 37 751]

    [8]

    Zhou P, Peng J S 1989 Acta Phys. Sin. 38 2044 (in Chinese) [周 鹏、彭金生 1989物理学报 38 2044]

    [9]

    Pan C N, Fang M F, Zheng X J, Hu Y H 2007 Chin. Phys. 16 1549

    [10]

    Fang M F, Liu X 2001 Chin. Phys. 10 720

    [11]

    Wu Y, Yang X X 1997 Phys. Rev. Lett. 78 3086

    [12]

    Wu Y 2001 Phys. Rev. A 63 052303

    [13]

    Chen X, Xia Y J 2010 Acta Phys. Sin. 59 0080 (in Chinese)[陈 星、夏云杰 2010 物理学报 59 0080]

    [14]

    Zhao J G, Sun C Y, Meng X G, Su J 2009 Acta Phys. Sin. 58 6985 (in Chinese)[赵建刚、孙长勇、孟祥国、苏 杰 2009 物理学报 58 6985]

    [15]

    Xu X X, Hu L Y, Fan H Y 2009 Chin. Phys. B 18 5139

    [16]

    Lin J C, Zheng X H, Cao Z L 2007 Acta Phys. Sin. 56 0837 (in Chinese) [林继成、郑小虎、曹卓良 2007 物理学报 56 0837]

    [17]

    Peng J S, Li G X 1996 Introduction of Modern Quantum Optics (Beijing: Science Press) (in Chinese) [彭金生、李高翔 1996 近代量子光学导论(北京:科学出版社)]

    [18]

    Scully M O, Zubairy M S 1997 Quantum Optics (Cambridge: Cambridge University Press)

计量
  • 文章访问数:  7894
  • PDF下载量:  724
  • 被引次数: 0
出版历程
  • 收稿日期:  2009-12-27
  • 修回日期:  2010-01-18
  • 刊出日期:  2010-05-05

/

返回文章
返回