Quantum Corner-Transfer Matrix DMRG

Details Quantum Corner-Transfer Matrix DMRG Quantum Corner-Transfer Matrix DMRG

2008-04-11

arxiv.org/abs/0804.1874v1

Physics

Condensed Matter

Strongly Correlated Electrons

17 pages, 15 figures, to appear in Int.J.Mod.Phys. C

Scientific paper

10.1142/S012918310801290X

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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