Manifestation of quantum resonances and antiresonances in a finite temperature dilute atomic gas

Saunders, M.; Halkyard, P.L.; Challis, K.J.; Gardiner, S.A.

doi:10.1103/physreva.76.043415

Manifestation of quantum resonances and antiresonances in a finite temperature dilute atomic gas

Saunders, M.; Halkyard, P.L.; Challis, K.J.; Gardiner, S.A.

Authors

M. Saunders

P.L. Halkyard

K.J. Challis

Professor Simon Gardiner s.a.gardiner@durham.ac.uk
Professor

Abstract

We investigate the effect of temperature on resonant and antiresonant dynamics in a dilute atomic gas kicked periodically by a standing-wave laser field. Our numerical calculations are based on a Monte Carlo method for an incoherent mixture of noninteracting plane waves, and show that the atomic dynamics are highly sensitive to the initial momentum width of the gas. We explain this sensitivity by examining the time evolution of individual atomic center-of-mass momentum eigenstates with varying quasimomentum, and we determine analytic expressions for the evolution of the second-order momentum moment to illustrate the range of behaviors.

Citation

Saunders, M., Halkyard, P., Challis, K., & Gardiner, S. (2007). Manifestation of quantum resonances and antiresonances in a finite temperature dilute atomic gas. Physical Review A, 76(4), https://doi.org/10.1103/physreva.76.043415

Journal Article Type	Article
Publication Date	Oct 1, 2007
Deposit Date	Jun 30, 2010
Publicly Available Date	Jul 1, 2010
Journal	Physical Review A
Print ISSN	1050-2947
Electronic ISSN	1094-1622
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	76
Issue	4
DOI	https://doi.org/10.1103/physreva.76.043415
Publisher URL	http://link.aps.org/abstract/PRA/v76/e043415