Dynamical Mean Field Theory of the Bose-Hubbard Model
Superconductivity
2009-10-31 v1
Abstract
Quantum dynamics of the Bose-Hubbard Model is investigated through a semiclassical hamiltonian picture provided by the Time-Dependent Variational Principle method. The system is studied within a factorized slow/fast dynamics. The semiclassical requantization procedure allows one to account for the strong quantum nature of the system when . The phase diagram is in good agreement with Quantum Monte Carlo results and third order strong coupling perturbative expansion.
Keywords
Cite
@article{arxiv.cond-mat/9801074,
title = {Dynamical Mean Field Theory of the Bose-Hubbard Model},
author = {L. Amico and V. Penna},
journal= {arXiv preprint arXiv:cond-mat/9801074},
year = {2009}
}
Comments
4 pages Revtex, 2 figures .eps, to be published in PRL