Quantum Monte Carlo method for the Bose-Hubbard model with harmonic confining potential.

Abstract

We study the Bose-Hubbard model with an external harmonic field, which is effective for modeling a cold atomic Bose gas trapped in an optical lattice. We modify the directed-loop algorithm to simulate large systems efficiently. As a demonstration we carry out the simulation of a system consisting of 1. 8 x 10{5} particles on a 64{3} lattice. These numbers… (More)

Topics

  • Presentations referencing similar topics