横场中各向异性xy模型的部分熵和量子互熵
, PP. 48-51
Keywords: 热纠缠,部分熵,量子互熵,各向异性,xy模型,最近邻相互作用
Abstract:
研究在一维各向异性xy模型中的热纠缠的熵的行为,发现在有限温度时,两子系统的部分熵不相等,同时给出部分熵随温度和最近邻相互作用的变化规律.然后引入量子互熵的概念来研究系统的熵,发现量子互熵随着温度的增加呈指数衰减趋势,同时也给出了量子互熵随温度和最近邻相互作用的变化规律.
References
[1] | bennettch,brassardg,crepeauc,etal.teleportinganunknownquantumstateviadualclassicalandeinstein-podolskyrosenchannels[j].physicalreviewletters,1993,70(13):1895-1899.
|
[2] | deutschd,ekerta,jozsar,etal.quantumprivacyamplificationandthesecurityofquantumcryptographyovernoisychannels[j].physicalreviewletters,1996,77(13):2818-2821.
|
[3] | bouwmeesterd,panjw,mattlekm,etal.experimentalquantumteleportation[j].nature,1997,390(6660):575-579.
|
[4] | shorpw.schemeforreducingdecoherenceinquantumcomputermemory[j].physicalreviewa,1995,52(4):2493-2496.
|
[5] | groverlk.quantummechanicshelpsinsearchingforaneedleinahaystack[j].physicalreviewletters,1997,79(2):325-328.
|
[6] | zhanglf,tongpq.entanglementofperiodicanisotropicxychains[j].journalofphysicsa:mathematicalandgeneral,2005,38(33):1-12.
|
[7] | zhaixy,tongpq.thermalentanglementofanisotropicxychainsinatransversefield[j].chinesephysicsletters,2007,24(9):2474-2478.
|
[8] | bennettch,bernsteinhj,popescus,etal.concentratingpartialentanglementbylocaloperations[j].physicalreviewa,1996,53(4):2046-2052.[9]cerfnj,adamic.negativeentropyandinformationinquantummechanics[j].physicalreviewletters,1997,79(26):5194-5197.
|
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