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arXiv · 0804.1874

Quantum Corner-Transfer Matrix DMRG

Erik Bartel·Andreas Schadschneider
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Abstract

We propose a new method for the calculation of thermodynamic properties of one-dimensional quantum systems by combining the TMRG approach with the corner transfer-matrix method. The corner transfer-matrix DMRG method brings reasonable advantage over TMRG for classical systems. We have modified the concept for the calculation of thermal properties of one-dimensional quantum systems. The novel QCTMRG algorithm is implemented and used to study two simple test cases, the classical Ising chain and the isotropic Heisenberg model. In a discussion, the advantages and challenges are illuminated.

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Erik Bartel, Andreas Schadschneider. 2008-04-11. Quantum Corner-Transfer Matrix DMRG. https://doi.org/10.1142/s012918310801290x

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