Quantum entanglement investigation on impurity effects in the transverse Ising chain

CORC > 新疆理化技术研究所 > 中国科学院新疆理化技术研究所 > 中国科学院特殊环境功能材料与器件重点试验室

	Quantum entanglement investigation on impurity effects in the transverse Ising chain
	Huang, XC (Huang, Xuchu)1; Si, TY (Si, Tieyan)1; Yang, ZH (Yang, Zhihua)1
刊名	PHYSICA B-CONDENSED MATTER
	2015
卷号	462 页码:25-29
关键词	Impurity effect Quantum entanglement Correlation function Concurrence
通讯作者	Yang, ZH
英文摘要	The impurity effects of the transverse Ising spin model with a magnetic impurity are investigated via the correlation function and entanglement on the basis of an exact solution. The non-analytical transition point from an ordered phase to a disorder phase is significantly shifted by the impurity coupling with local host spins. The maximal entanglement point which usually appears around the critical point shows strong dependence on the impurity coupling strength with local host spin and the independent transverse field upon the impurity itself. Quantum entanglement in disordered spin phase is much stronger than that in ordered spin phase. The exact concurrence of impurity spin with local host spin suddenly increases to a large value from zero at a threshold value. The maximal entanglement point between impurity and local host spin increases as the impurity coupling strength increases. So the impurity coupling strength and local transverse field on the impurity can control position of critical point and maximal entanglement point.
收录类别	SCI
内容类型	期刊论文
源URL	[http://ir.xjipc.cas.cn/handle/365002/4898]
专题	新疆理化技术研究所_中国科学院特殊环境功能材料与器件重点试验室新疆理化技术研究所_材料物理与化学研究室
作者单位	1.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Harbin Inst Technol, Harbin 150001, Peoples R China
推荐引用方式 GB/T 7714	Huang, XC ,Si, TY ,Yang, ZH . Quantum entanglement investigation on impurity effects in the transverse Ising chain[J]. PHYSICA B-CONDENSED MATTER,2015,462:25-29.
APA	Huang, XC ,Si, TY ,&Yang, ZH .(2015).Quantum entanglement investigation on impurity effects in the transverse Ising chain.PHYSICA B-CONDENSED MATTER,462,25-29.
MLA	Huang, XC ,et al."Quantum entanglement investigation on impurity effects in the transverse Ising chain".PHYSICA B-CONDENSED MATTER 462(2015):25-29.