Finite Temperature Density Matrix Renormalization using an enlarged Hilbert space

A. E. Feiguin; Steven R. White

doi:10.1103/physrevb.72.220401

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Finite Temperature Density Matrix Renormalization using an enlarged Hilbert space

A. E. Feiguin·Steven R. White

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Abstract

We apply a generalization of the time-dependent DMRG to study finite temperature properties of several quantum spin chains, including the frustrated $J_1-J_2$ model. We discuss several practical issues with the method, including use of quantum numbers and finite size effects. We compare with transfer-matrix DMRG, finding that both methods produce excellent results.

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A. E. Feiguin, Steven R. White. 2005-10-17. Finite Temperature Density Matrix Renormalization using an enlarged Hilbert space. https://doi.org/10.1103/physrevb.72.220401

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