Elastic and inelastic transmission in guided atom lasers: a truncated Wigner approach
Abstract
We study the transport properties of an ultracold gas of Bose-Einstein condensate that is coupled from a magnetic trap into a one-dimensional waveguide. Our theoretical approach to tackle this problem is based on the truncated Wigner method for which we assume the system to consist of two semi-infinite non-interacting leads and a finite interacting scattering region with two constrictions modelling an atomic quantum dot. The transmission is computed in the steady-state regime and we find a good agreement between truncated Wigner and Matrix-Product State calculations. We also identify clear signatures of inelastic resonant scattering by analyzing the distribution of energy in the transmitted atomic matter wave beam.
Keywords
Cite
@article{arxiv.1412.3598,
title = {Elastic and inelastic transmission in guided atom lasers: a truncated Wigner approach},
author = {Julien Dujardin and Arturo Argüelles and Peter Schlagheck},
journal= {arXiv preprint arXiv:1412.3598},
year = {2015}
}
Comments
10 pages, 5 figures, submitted to Phys. Rev. A