J4 ›› 2016, Vol. 33 ›› Issue (2): 215-219.

• 量子光学 • 上一篇    下一篇

含Dzyaloshinski-Moriya相互作用的两比特Heisenberg XYZ模型中的超级量子失协

麦麦提依明?吐孙,艾合买提?阿不力孜,王飞,帕肉克?帕尔哈提   

  1. 新疆师范大学物理与电子工程学院,新疆 乌鲁木齐 830054
  • 收稿日期:2015-03-23 修回日期:2015-06-01 出版日期:2016-03-28 发布日期:2016-03-28
  • 通讯作者: 麦麦提依明?吐孙(1986-12 ),乌鲁木齐人,讲师,从事量子信息与量子计算的研究。 E-mail:396855289@qq.com
  • 基金资助:
    新疆维吾尔自治区高校科研计划青年教师科研启动基金项目(XJEDU2014S035),新疆维吾尔自治区理论物理重点学科招标课题(14XSQZ0602)资助

Super quantum discord in two qubit Heisenberg XYZ model with Dzyaloshinski-Moriya interaction

TURSUN Mamtimin? ,ABLIZ Ahmad , WANG Fei, PARHAT Paruh   

  1. School of Physics and Electronic Engineering, Xinjiang Normal University, Urumchi 830054, China
  • Received:2015-03-23 Revised:2015-06-01 Published:2016-03-28 Online:2016-03-28

摘要: 超级量子失协因其具有超越普通量子失协和量子纠缠的特性受到人们的普遍关注。本文从理论上对比研究了含Dzyaloshinski-Moriya相互作用的Heisenberg XYZ模型处于热平衡下的超级量子失协和普通量子失协。研究发现,超级量子失协总是大于普通量子失协,而且Dzyaloshinski-Moriya相互作用对超级量子失协起着积极作用。最有意义的是温度对该模型中超级量子失协的影响比普通量子失协小得多。

关键词: 量子光学;超级量子失协;弱测量;Dzyaloshinski-Moriya相互作用;测量强度

Abstract: Super quantum discord gets widely attention because it has better property than normal quantum discord and quantum entanglement. This paper perform comparative theoretical study on the super quantum discord and normal quantum discord in thermal equilibrium Heisenberg XYZ model with Dzyaloshinski - Moriya interaction. It is found that the super quantum discord always larger than the normal quantum discord, and Dzyaloshinski - Moriya interaction plays a positive role to the super quantum discord. Finally, it is most meaningful that the super quantum discord in this model is little affected by temperature than normal quantum discord.

Key words: quantum optics; super quantum discord;weak measurement; Dzyaloshinski-Moriya interaction;measurement strength.

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