Engineering fast and stable splitting of matter waves
Quantum Physics
2015-02-26 v1
Abstract
When attempting to split coherent cold atom clouds or a Bose-Einstein condensate (BEC) by bifurcation of the trap into a double well, slow adiabatic following is unstable with respect to any slight asymmetry, and the wave "collapses" to the lower well, whereas a generic fast chopping splits the wave but it also excites it. Shortcuts to adiabaticity engineered to speed up the adiabatic process through non-adiabatic transients, provide instead quiet and robust fast splitting. The non-linearity of the BEC makes the proposed shortcut even more stable.
Keywords
Cite
@article{arxiv.1207.3184,
title = {Engineering fast and stable splitting of matter waves},
author = {E. Torrontegui and S. Martínez-Garaot and M. Modugno and Xi Chen and J. G. Muga},
journal= {arXiv preprint arXiv:1207.3184},
year = {2015}
}