| 杨丽丽,闫栋华,王银珠.多体复合量子态基于可观测量算子的纠缠测度[J].井冈山大学自然版,2022,43(3):1-5 |
| 多体复合量子态基于可观测量算子的纠缠测度 |
| THE ENTANGLEMENT MEASURE OF THE MULTIPARTITE COMPOSITE QUANTUM STATES BASED ON OBSERVABLE OPERATOR |
| 投稿时间：2021-11-29 修订日期：2022-01-12 |
| DOI：10.3969/j.issn.1674-8085.2022.03.001 |
| 中文关键词: 多体量子系统 量子态 可观测量关联 互信息 纠缠测度 |
| 英文关键词: multipartite quantum system quantum states observable correlations mutual information entanglement measure |
| 基金项目:国家自然科学基金项目(11901421);山西省自然科学基金面上项目(201901D111254) |
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| 中文摘要: |
| 近些年，人们对量子纠缠的量化已经有了许多深入的研究，但是，许多已有的纠缠度量还是难以计算的。LuoShunlong基于互信息提出了两体量子态的可观测量关联，并得到了两体量子态的一类纠缠测度。本文将两体系统的纠缠测度推广到多体复合量子系统，并证明了其满足纠缠测度的必要物理条件。 |
| 英文摘要: |
| In recent years, there are many research results on the quantization of quantum entanglement, but many of the existing entanglement measures are still difficult to calculate. In the paper “Entanglement measures based on observable correlations”, LUO Shun-long proposed an observable correlation measure of bipartite quantum states based on mutual information, and obtained a class of entanglement measures of bipartite quantum states. In this paper, we generalize the entanglement measure of the bipartite system to the multipartite composite quantum system, and prove that it satisfies the necessary physical conditions of entanglement measure. |
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