Minimally entangled typical quantum states at finite temperature
Strongly Correlated Electrons
2013-05-29 v2 Statistical Mechanics
Abstract
We introduce a class of states, called minimally entangled typical thermal states (METTS), designed to resemble a typical state of a quantum system at finite temperature with a bias towards classical (minimally entangled) properties. These states reveal in an intuitive way properties such as short-range order which may be hidden in correlation functions. An algorithm is presented which, when used with the density matrix renormalization group (DMRG), is faster by a factor of than previous heat-bath approaches for thermally averaged quantities.
Cite
@article{arxiv.0902.4475,
title = {Minimally entangled typical quantum states at finite temperature},
author = {Steven R. White},
journal= {arXiv preprint arXiv:0902.4475},
year = {2013}
}
Comments
4 pages, 3 figures. v2 has some additional references