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Thermal entanglement in Spin-1 biparticle system

✍ Scribed by Guo-feng Zhang; Shu-shen Li; Jiu-qing Liang


Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
303 KB
Volume
245
Category
Article
ISSN
0030-4018

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We study entanglement, purity and fidelity in the anisotropy (1/2, 1) mixed-spin Heisenberg chain. We find that negativity, as a measure of entanglement, displays a dip at the SU(2) isotropic point of the system, which is in contrast to the peak appearance of concurrence in the spin-1/2 XXZ chain. M