Exact quantum dynamics of a bosonic Josephson junction
Quantum Gases
2009-11-24 v1 Other Condensed Matter
Quantum Physics
Abstract
The quantum dynamics of a one-dimensional bosonic Josephson junction is studied by solving the time-dependent many-boson Schr\"odinger equation numerically exactly. Already for weak interparticle interactions and on short time scales, the commonly-employed mean-field and many-body methods are found to deviate substantially from the exact dynamics. The system exhibits rich many-body dynamics like enhanced tunneling and a novel equilibration phenomenon of the junction depending on the interaction, attributed to a quick loss of coherence.
Cite
@article{arxiv.0905.0902,
title = {Exact quantum dynamics of a bosonic Josephson junction},
author = {Kaspar Sakmann and Alexej I. Streltsov and Ofir E. Alon and Lorenz S. Cederbaum},
journal= {arXiv preprint arXiv:0905.0902},
year = {2009}
}
Comments
11 pages, 3 figures