| 在有限温度下两个比特Heisenberg XX链中的各种量子关联 |
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| 引用本文： | 麦麦提依明·吐孙,艾合买提·阿不力孜,日比古·买买提明,乔盼盼.在有限温度下两个比特Heisenberg XX链中的各种量子关联[J].新疆师范大学学报(自然科学版),2012,31(3):22-25. |
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| 作者姓名： | 麦麦提依明·吐孙 艾合买提·阿不力孜 日比古·买买提明 乔盼盼 |
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| 作者单位： | 新疆师范大学物理与电子工程学院,新疆乌鲁木齐,830054 |
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| 基金项目： | 新疆维吾尔自治区自然科学基金项目，新疆师范大学物理与电子工程学院研究生创新基金 |
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| 摘 要： | 文章主要研究在有限温度下两个比特海森堡XX自旋链中Z方向的Dzyaloshinskii-Morriya(D-M)相互作用(Dz)和耦合常数(J)对各种量子关联的影响。研究发现在有限温度下不加Dz时经典关联(CC)和量子失协(QD)都随温度的提高而下降,下降速度也比较快。加了Dz时也是随温度的提高而下降,但是下降速度较慢。从计算分析看,在有限温度下Dz和J对QD和CC有积极作用。调整适当的Dz和J参数,可以有效地控制和提高各种量子关联。
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| 关 键 词： | D-M相互作用 海森堡自旋链 量子失协 经典关联 |
The Quantum Correlations in Two bits the Heisenberg XX Chain at Finite Temperature |
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| Mamtimin·TURSUN,Ahmad·ABLIZ,Rabigul·MAMTIMIN,Qiao Pan-pan.The Quantum Correlations in Two bits the Heisenberg XX Chain at Finite Temperature[J].Journal of Xinjiang Normal University(Natural Sciences Edition),2012,31(3):22-25. |
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| Authors: | Mamtimin·TURSUN Ahmad·ABLIZ Rabigul·MAMTIMIN Qiao Pan-pan |
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| Institution: | (School of Physics and Electronic Engineering,Xinjiang Normal University, Urumqi,XinJiang,830054,China) |
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| Abstract: | This paper mainly investigates the quantum correlation in two bits Heisenberg XX spin chain at finite temperature Z direction with the Dzyaloshinskii-Morriya(Dz) interaction.the study foud that at the finite temperature the classical correlation and quantum discord decline with the increase of temperature,the decline faster.we added the Dz,he classical correlation and quantum discord decline with the increase of temperature,But the decline slower than former.From the computational analysis,we know that Dzand J has a positive effect on the concurrence,classical correlation and quantum discord.If we ajust the suitable Dz and J,we will effectively control and increase the various quntum correlation. |
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| Keywords: | Dzyaloshinskii-Morriya interaction Heisenberg spin chain quntum discord classical correlation |
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