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arxiv: cond-mat/0401115 · v1 · submitted 2004-01-08 · ❄️ cond-mat.stat-mech

Tensor Product Variational Formulation for Quantum Systems

Y. Nishio , N. Maeshima , A. Gendiar , T. Nishino This is my paper
classification ❄️ cond-mat.stat-mech
keywords variationalgroupmatrixmethodproductquantumrenormalizationsystems
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We consider a variational problem for the two-dimensional (2D) Heisenberg and XY models, using a trial state which is constructed as a 2D product of local weights. Variational energy is calculated by use of the the corner transfer matrix renormalization group (CTMRG) method, and its upper bound is surveyed. The variational approach is a way of applying the density matrix renormalization group method (DMRG) to infinite size 2D quantum systems.

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Cited by 2 Pith papers

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