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Magnietic impurity effect on the entanglement in the Ising model

Authors Cao, JP
Sun, ZZ
Yin, S
Wang, YP
Wang, XR
Issue Date 2005
Source Journal OF PHYSICS a-mathematical and GENERAL , v. 38, (12), 2005, MAR 25, p. 2579-2591
Summary We study the effect of magnetic impurity on the entanglement in the three-site Ising model with both periodic and open boundary conditions. We obtain the analytic expressions for entanglement and show that the ground state and excited states of the system possess remarkable entanglement properties. We find that the entanglement between two specific spins for a given state depends on the sites where the impurities are located. We also discuss a relation of our results with some aspects of quantum phase transitions in the transverse Ising model.
ISSN 0305-4470
Rights Journal of Physics A © copyright 2005 IOP Publishing Ltd. The Journal's web site is located at
Language English
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