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arxiv: 1209.0454 · v2 · pith:LCQHLBMCnew · submitted 2012-09-03 · ❄️ cond-mat.str-el · cond-mat.quant-gas· cond-mat.stat-mech· quant-ph

Projected Entangled Pair States at Finite Temperature: Imaginary Time Evolution with Ancillas

classification ❄️ cond-mat.str-el cond-mat.quant-gascond-mat.stat-mechquant-ph
keywords ancillasentangledfiniteimaginarypairprojectedquantumstate
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A 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.

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