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Quantum and classical correlations in the anisotropic XY model with a single defect

✍ Scribed by Cheng, W.W.; Shan, C.J.; Sheng, Y.B.; Gong, L.Y.; Zhao, S.M.; Liu, J.-M.

Book ID
120663792
Publisher
Elsevier Science
Year
2013
Tongue
English
Weight
669 KB
Volume
54
Category
Article
ISSN
1386-9477

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In this paper we study the quantum phase transition and low temperature behavior in a square lattice quantum two-dimensional XY model with single-ion anisotropy and spin S = 1. Starting with the Villain representation, a Landau-Ginzburg expression is written. The large D phase is studied using the