大学物理 ›› 2013, Vol. 32 ›› Issue (10): 1-1.
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宋世学
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摘要： 纠缠相干态是一类在量子信息领域有重要应用的连续变量纠缠态,由于相干态表象中的基矢不正交,导致其纠缠度计算的困难.本文给出了基于相干态本身的正交归一完备基的构建方法,简化了其纠缠度的计算,讨论了纠缠度的影响因素,并计算了常见的几种纠缠相干态的纠缠度.
关键词: 纠缠度, 正交基, 纠缠相干态
Abstract: Entangled coherent states are a type of important continuous-variable entangled states in the processing of quantum information.However,it is complicated to calculate their entanglement due to the non-orthogonality of basis vectors in the representation of coherent state.We propose a construction method of a set of complete and orthogonal bases for two-mode entangled coherent states,and simplify the calculation of their entanglement.And also,the entanglement of several typical entangled states is calculated and discussed.
Key words: entanglement measure, orthogonal basis vector, entangled coherent state
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宋世学. 双模纠缠相干态正交基的构建与纠缠度的计算[J]. 大学物理, 2013, 32(10): 1-1.
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https://dxwl.bnu.edu.cn/CN/Y2013/V32/I10/1
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