Matrix Product Density Operators: Simulation of finite-T and dissipative systems
Other Condensed Matter
2007-05-23 v2 Strongly Correlated Electrons
Quantum Physics
Abstract
We show how to simulate numerically both the evolution of 1D quantum systems under dissipation as well as in thermal equilibrium. The method applies to both finite and inhomogeneous systems and it is based on two ideas: (a) a representation for density operators which extends that of matrix product states to mixed states; (b) an algorithm to approximate the evolution (in real or imaginary time) of such states which is variational (and thus optimal) in nature.
Keywords
Cite
@article{arxiv.cond-mat/0406426,
title = {Matrix Product Density Operators: Simulation of finite-T and dissipative systems},
author = {F. Verstraete and J. J. Garcia-Ripoll and J. I. Cirac},
journal= {arXiv preprint arXiv:cond-mat/0406426},
year = {2007}
}
Comments
See also M. Zwolak et al. cond-mat/0406440