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Title: Incomplete optical shielding in cold sodium atom traps

Abstract

A simple two-channel model, based on the semiclassical Landau-Zener (LZ) approximation, with averaging over angle-dependent exponents, is proposed as a fast means for accounting for the incomplete optical shielding of collisions, as observed in recent experiments conducted by Weiner and co-workers on ultracold sodium-atom traps, and its dependence on the laser polarization. The model yields a reasonably good agreement with the recent quantum close-coupling calculations of Julienne and co-workers. The remaining discrepancy between both theories and the data is qualitatively attributed to a partial overlap of the collision ranges at which loss processes and optical shielding occur.

Authors:
;  [1]
  1. School of Chemistry, Tel Aviv University, 69978 Tel Aviv (Israel)
Publication Date:
OSTI Identifier:
21163591
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 386; Journal Issue: 1; Conference: 13. international conference on spectral line shapes, Florence (Italy), 16-21 Jun 1996; Other Information: DOI: 10.1063/1.51786; (c) 1997 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ATOM-ATOM COLLISIONS; ATOMS; COUPLING; IONIZATION; LANDAU-ZENER FORMULA; POLARIZATION; SEMICLASSICAL APPROXIMATION; SODIUM; TRAPS

Citation Formats

Yurovsky, Vladimir, and Ben-Reuven, Abraham. Incomplete optical shielding in cold sodium atom traps. United States: N. p., 1997. Web. doi:10.1063/1.51786.
Yurovsky, Vladimir, & Ben-Reuven, Abraham. Incomplete optical shielding in cold sodium atom traps. United States. https://doi.org/10.1063/1.51786
Yurovsky, Vladimir, and Ben-Reuven, Abraham. 1997. "Incomplete optical shielding in cold sodium atom traps". United States. https://doi.org/10.1063/1.51786.
@article{osti_21163591,
title = {Incomplete optical shielding in cold sodium atom traps},
author = {Yurovsky, Vladimir and Ben-Reuven, Abraham},
abstractNote = {A simple two-channel model, based on the semiclassical Landau-Zener (LZ) approximation, with averaging over angle-dependent exponents, is proposed as a fast means for accounting for the incomplete optical shielding of collisions, as observed in recent experiments conducted by Weiner and co-workers on ultracold sodium-atom traps, and its dependence on the laser polarization. The model yields a reasonably good agreement with the recent quantum close-coupling calculations of Julienne and co-workers. The remaining discrepancy between both theories and the data is qualitatively attributed to a partial overlap of the collision ranges at which loss processes and optical shielding occur.},
doi = {10.1063/1.51786},
url = {https://www.osti.gov/biblio/21163591}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 386,
place = {United States},
year = {Sun Jan 05 00:00:00 EST 1997},
month = {Sun Jan 05 00:00:00 EST 1997}
}