PhysRevA.96.053623.pdf (1.55 MB)
Effects of classical stochastic webs on the quantum dynamics of cold atomic gases in a moving optical lattice
journal contribution
posted on 2017-11-23, 11:29 authored by N. Welch, Mark GreenawayMark Greenaway, T.M. FromholdWe introduce and investigate a system that uses temporal resonance-induced phase-space pathways to create strong coupling between an atomic Bose-Einstein condensate and a traveling optical lattice potential. We show
that these pathways thread both the classical and quantum phase space of the atom cloud, even when the optical lattice potential is arbitrarily weak. The topology of the pathways, which form weblike patterns, can by controlled
by changing the amplitude and period of the optical lattice. In turn, this control can be used to increase and limit the BEC’s center-of-mass kinetic energy to prespecified values. Surprisingly, the strength of the atom-lattice
interaction and resulting BEC heating of the center-of-mass motion is enhanced by the repulsive interatomic
interactions.
Funding
This work is supported by EPSRC UK.
History
School
- Science
Department
- Physics
Published in
Physical Review AVolume
96Citation
WELCH, N., GREENAWAY, M.T. and FROMHOLD, T.M., 2017. Effects of classical stochastic webs on the quantum dynamics of cold atomic gases in a moving optical lattice. Physical Review A, 96: 053623.Publisher
© American Physical SocietyVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2017-11-17Notes
This paper was accepted for publication in the journal Physical Review A and the definitive published version is available at https://doi.org/10.1103/PhysRevA.96.053623ISSN
1050-2947Publisher version
Language
- en