Entanglement of formation for one-dimensional magnetic systems with defects

Zhen Huang, Omar Osenda, Sabre Kais

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We present a study of the entanglement of formation for one-dimensional magnetic systems with defects. The concurrence was used as a measure of entanglement. Rather than locating the impurity at one site in the chain, there is a Gaussian distribution of disorder near a particular location. We demonstrate that the entanglement can be tuned by varying the strength of the external magnetic field and the distribution of impurities. The concurrence is a maximum close to the critical point, where a quantum phase transition occurs, and for certain parameters can be tuned to zero above the critical point.

Original languageEnglish
Pages (from-to)137-145
Number of pages9
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume322
Issue number3-4
DOIs
Publication statusPublished - 1 Mar 2004
Externally publishedYes

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Keywords

  • Defects
  • Entanglement of formation
  • Magnetic systems

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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