| 湮没算符三次幂本征态的非经典特性 |
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| 引用本文： | 蓝海江.湮没算符三次幂本征态的非经典特性[J].广西科学,2010,17(3):232-234. |
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| 作者姓名： | 蓝海江 |
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| 作者单位： | 柳州师范高等专科学校物理与信息科学系,广西柳州,545004;西南交通大学量子光电实验室,四川成都,610031 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 基于量子态的反聚束效应及Wigner函数的分布规律,利用二阶相干度及Fock态表象下Wigner函数的表示式,分别计算湮没算符三次幂本征态的二阶相干度及Wigner函数,讨论湮没算符三次幂本征态的非经典特性.结果表明,湮没算符三次幂本征态都具有反聚束效应,并且其Wigner函数均出现负值.这说明湮没算符三次幂本征态都是具有非经典特性的量子态.
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| 关 键 词： | 湮没算符 本征态 二阶相干度 反聚束效应 Wigner函数 非经典特性 |
| 收稿时间： | 2009/12/7 0:00:00 |
Non-classical Properties of the Eigenstates of Annihilation Operator a3 |
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| LAN Hai-jiang.Non-classical Properties of the Eigenstates of Annihilation Operator a3[J].Guangxi Sciences,2010,17(3):232-234. |
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| Authors: | LAN Hai-jiang |
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| Institution: | LAN Hai-jiang,(1.Department of Physics and Information Science,Liuzhou Teachers College,Liuzhou,Guangxi,545004,China;2.Quantum Optoelectronics Laboratory,Southwest Jiaotong University,Chengdu,Sichuan,610031,China) |
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| Abstract: | By using the expression of second-order coherence degree and Wigner function in Fock presentation,the second-order coherence degrees and the Wigner functions of the eigenstates of annihilation operator a3 were calculated.Based on the anti-bunching effect and the distributions of Wigner functions,the nonclassical properties of these eigenstates were analyzed.The numerical results show that these eigenstates produce anti-bunching effect,and their relevant Wigner functions can be negative in phase spaces,which indicates that the eigenstates of annihilation operator a3 are non-classical states. |
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| Keywords: | annihilation operator eigenstate second-order coherence degree anti-bunching effect Wigner function non-classical property |
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