| 有限维Hilbert空间奇偶相干态的方差压缩和熵压缩特性 |
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| 引用本文： | 卢道明.有限维Hilbert空间奇偶相干态的方差压缩和熵压缩特性[J].四川师范大学学报(自然科学版),2008,31(6). |
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| 作者姓名： | 卢道明 |
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| 作者单位： | 武夷学院,电子工程系,福建,武夷山,354300 |
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| 摘 要： | 运用数值计算的方法研究了有限维希尔伯特空间奇偶相干态的方差压缩和熵压缩特性,并对两种压缩效应进行了比较,数值计算结果表明:各有限维希尔伯特空间奇相干态均不出现方差压缩,但具有熵压缩效应.各有限维希尔伯特空间偶相干态出现方差压缩时,熵一定出现压缩,熵压缩范围较方差压缩范围大,可见熵更敏感于光场的压缩效应.
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| 关 键 词： | 有限维希尔伯特空间 奇偶相干态 方差压缩 熵压缩 |
The Quadratic Compression and Entropic Compression of Odd and Even Coherent States in a Finite-Dimensional Hilbert Space |
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| LU Dao-ming.The Quadratic Compression and Entropic Compression of Odd and Even Coherent States in a Finite-Dimensional Hilbert Space[J].Journal of Sichuan Normal University(Natural Science),2008,31(6). |
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| Authors: | LU Dao-ming |
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| Abstract: | The quadratic compression and entropic compression of odd and even coherent states(O-E CSs) in a finite-dimensional Hilbert space are studied by numerical calculation method.It is showed that no quadratic compression but entropic compression exists in O-CSs;both quadratic compression and entropic compression exist in E-CSs.The quadratic compression and entropic compression of O-E CSs are compared.If there is the quadratic compression of parity coherent states in each finite-dimensional Hilbert space,there must be the entropic compression.The results show that entropic compression is more sensitive than quadratic compression. |
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| Keywords: | A finite-dimensional Hilbert space Odd and even coherent states Quadratic compression Entropic compression |
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