Thermodynamic Density Matrix renormalization Group Study of the Magnetic Susceptibility of Half-integer Quantum Spin Chains
Strongly Correlated Electrons
2009-10-28 v1
Abstract
It is shown that White's density matrix renormalization group technique can be adapted to obtain thermodynamic quantities. As an illustration, the magnetic susceptibility of Heisenberg S=1/2 and S=3/2 spin chains are computed. A careful finite size analysis is made to determine the range of temperatures where the results are reliable. For the S=1/2 chain, the comparison with the exact Bethe ansatz curve shows an agreement within 1% down to T=0.05J.
Keywords
Cite
@article{arxiv.cond-mat/9610164,
title = {Thermodynamic Density Matrix renormalization Group Study of the Magnetic Susceptibility of Half-integer Quantum Spin Chains},
author = {S. Moukouri and L. G. Caron},
journal= {arXiv preprint arXiv:cond-mat/9610164},
year = {2009}
}
Comments
9 pages, 4 figures. To be published in PRL