Real-time path integral approach to nonequilibrium many-body quantum system
Mesoscale and Nanoscale Physics
2009-11-13 v1 Statistical Mechanics
Abstract
A real-time path integral Monte Carlo approach is developed to study the dynamics in a many-body quantum system until reaching a nonequilibrium stationary state. The approach is based on augmenting an exact reduced equation for the evolution of the system in the interaction picture which is amenable to an efficient path integral (worldline) Monte Carlo approach. Results obtained for a model of inelastic tunneling spectroscopy reveal the applicability of the approach to a wide range of physically important regimes, including high (classical) and low (quantum) temperatures, and weak (perturbative) and strong electron-phonon couplings.
Cite
@article{arxiv.0707.0956,
title = {Real-time path integral approach to nonequilibrium many-body quantum system},
author = {Lothar Mühlbacher and Eran Rabani},
journal= {arXiv preprint arXiv:0707.0956},
year = {2009}
}
Comments
5 pages, 2 figures