Projected Entangled Pair States at Finite Temperature: Imaginary Time
Evolution with Ancillas [PDF]
Piotr Czarnik, Lukasz Cincio, Jacek DziarmagaA projected entangled pair state (PEPS) with ancillas is evolved in imaginary time. This tensor network represents a thermal state of a 2D lattice quantum system. A finite temperature phase diagram of the 2D quantum Ising model in a transverse field is obtained as a benchmark application.View original: http://arxiv.org/abs/1209.0454
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