Generating mesoscopic Bell states via collisions of distinguishable quantum bright solitons
Abstract
We investigate numerically the collisions of two distinguishable quantum matter-wave bright solitons in a one-dimensional harmonic trap. We show that such collisions can be used to generate mesoscopic Bell states which can reliably be distinguished from statistical mixtures. Calculation of the relevant s-wave scattering lengths predicts that such states could potentially be realized in quantum-degenerate mixtures of 85Rb and 133Cs. In addition to fully quantum simulations for two distinguishable two-particle solitons, we use a mean-field description supplemented by a stochastic treatment of quantum fluctuations in the soliton's center of mass: We demonstrate the validity of this approach by comparison to a mathematically rigorous effective potential treatment of the quantum many-particle problem.
Keywords
Cite
@article{arxiv.1301.0718,
title = {Generating mesoscopic Bell states via collisions of distinguishable quantum bright solitons},
author = {Bettina Gertjerenken and Thomas P. Billam and Caroline L. Blackley and C. Ruth Le Sueur and Lev Khaykovich and Simon L. Cornish and Christoph Weiss},
journal= {arXiv preprint arXiv:1301.0718},
year = {2013}
}
Comments
7 pages, 5 figures