Entanglement Dynamics of Ising Model with Dzialoshinskii-Moriya Interaction in an Inhomogeneous Magnetic Field

Autor:	Dai-Guo He, Jian-Xing Fang, Jie Hu
Rok vydání:	2010
Předmět:	Physics Dm interaction Physics and Astronomy (miscellaneous) Condensed matter physics General Mathematics Quantum mechanics Dynamics (mechanics) Ising model Quantum Physics Quantum entanglement Quantum information processing Sudden death Magnetic field
Zdroj:	International Journal of Theoretical Physics. 50:682-688
ISSN:	1572-9575 0020-7748
DOI:	10.1007/s10773-010-0598-5
Popis:	This paper investigates the entanglement dynamics of two-spin Ising model with the Dzialoshinskii-Moriya (DM) interaction in an inhomogeneous magnetic field. The system is initially prepared in the Werner state.It is found that the phenomenon of the entanglement sudden death (ESD) appears during the evolution process. We also analyze in detail the effects of the DM interaction, the degree of inhomogeneous magnetic field and the purity of the initial state on the time of ESD. These effects indicate that one can control the entanglement of the system. It is helpful for quantum information processing.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b6647075ce37efd98c9942e09ae85a32 https://doi.org/10.1007/s10773-010-0598-5 Zobrazit plný text záznamu Full text from SpringerLink