Quantum dynamics of attractive versus repulsive bosonic Josephson junctions: Bose-Hubbard and full-Hamiltonian results
Quantum Gases
2010-07-28 v1
Abstract
The quantum dynamics of one-dimensional bosonic Josephson junctions with attractive and repulsive interparticle interactions is studied using the Bose-Hubbard model and by numerically-exact computations of the full many-body Hamiltonian. A symmetry present in the Bose-Hubbard Hamiltonian dictates an equivalence between the evolution in time of attractive and repulsive Josephson junctions with attractive and repulsive interactions of equal magnitude. The full many-body Hamiltonian does not possess this symmetry and consequently the dynamics of the attractive and repulsive junctions are different.
Keywords
Cite
@article{arxiv.0911.4661,
title = {Quantum dynamics of attractive versus repulsive bosonic Josephson junctions: Bose-Hubbard and full-Hamiltonian results},
author = {Kaspar Sakmann and Alexej I. Streltsov and Ofir E. Alon and Lorenz S. Cederbaum},
journal= {arXiv preprint arXiv:0911.4661},
year = {2010}
}
Comments
9 pages, 2 figures