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Entanglement in the XXZ chain

Entanglement in the XXZ chain

Update: 2008-05-06
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We take an antiferromagnetic XXZ chain in its ground state, and consider a small sequence of sites. The spins on these sites are entangled with the other spins. We show results for the entanglement entropy as a function of the length of the segment and the length of the chain.
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Entanglement in the XXZ chain

Entanglement in the XXZ chain

Steve Greenham