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On the general XY Model: positive and zero temperature, selection and non-selection.
We study the two-dimensional generalized XY model that depends on an integer $q$ by the Monte Carlo method. This model was recently proposed by Romano and Zagrebnov. We find a single Kosterlitz-Thoul...
In the present paper we study forward Quantum Markov Chains (QMC) defined on a Cayley tree. Using the tree structure of graphs, we give a construction of quantum Markov chains on a Cayley tree. By me...
Spin dynamics in the XY model     Spin dynamics  the XY model       2010/11/5
We study the evolution of entanglement, quantum correlation and classical correlation for the one dimensional XY model in external transverse magnetic field. The system is initialized in the full pola...
Consider the classical XY model in a weak random external field pointing along the Y axis with strength . We study the behavior of this model as the range of the interaction is varied. We prove that...
2006Vol.45No.1pp.61-66DOI: Effects of Staggered Magnetic Field on Entanglement in the Anisotropic XY Model SUN Zhe and WANG Xiao-Guang Zhejiang Institute of Modern Phys...
Using Monte Carlo simulations we have investigated the critical behavior of the classical fully frustrated XY model in two dimensions in a square lattice. There are two phase transitions in themodel, ...

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