August 4th-7th, 2014
Yukawa Institute for Theoretical Physics, Kyoto University
"Entanglement Entropy" and phase transition in classical statistical models"
Tomotoshi Nishino (Kobe Univ.)
By means of well known quantum-classical correspondence, one can find a kind of entropy for classical lattice models such as the classical square-lattice Ising model, the entropy which shares the same mathematical property as the entanglement entropy (E.E). Using this quantity one can easily estimate the correlation length of the system. We show temperature dependences of the "classical" E.E for polygon models and Ising models on hyperbolic lattices, and discuss their phase transition.
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