Bound states and expansion dynamics of interacting bosons on a one-dimensional lattice
Quantum Gases
2015-06-22 v2
Abstract
The expansion dynamics of bosonic gases in optical lattices has recently been the focus of increasing attention, both experimental and theoretical. We consider, by means of numerical Bethe ansatz, the expansion dynamics of initially confined wave packets of two interacting bosons on a lattice. We show that a correspondence between the asymptotic expansion velocities and the projection of the evolved wave function over the bound states of the system exists, clarifying the existing picture for such situations. Moreover, we investigate the role of the lattice in this kind of evolution.
Keywords
Cite
@article{arxiv.1407.2105,
title = {Bound states and expansion dynamics of interacting bosons on a one-dimensional lattice},
author = {Cristian Degli Esposti Boschi and Elisa Ercolessi and Loris Ferrari and Piero Naldesi and Fabio Ortolani and Luca Taddia},
journal= {arXiv preprint arXiv:1407.2105},
year = {2015}
}
Comments
12 pages, 10 figures