Effect of anisotropy on the entanglement of quantum states in a spin chain

PF Kartsev*, VA Kashurnikov

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The effect of the anisotropy of the interaction of a spin chain in the XXZ Heisenberg model on the concurrence of the states of neighboring sites is studied. When anisotropy increases, the maximum concurrence in a magnetic field increases above the value reached in the absence of the field. The maximum magnetic field allowing entanglement is linearly related to the anisotropy parameter. (C) 2004 MAIK "Nauka/Interperiodica".

Original languageEnglish
Pages (from-to)441-444
Number of pages4
JournalJetp Letters
Volume80
Issue number6
Publication statusPublished - 2004

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