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Title: Photoassociation of a cold-atom-molecule pair: Long-range quadrupole-quadrupole interactions

Abstract

The general formalism of the multipolar expansion of electrostatic interactions is applied to the calculation of the potential energy between an excited atom (without fine structure) and a ground-state diatomic molecule at large mutual separations. Both partners exhibit a permanent quadrupole moment so that their mutual long-range interaction is dominated by a quadrupole-quadrupole term, which is attractive enough to bind trimers. Numerical results are given for an excited Cs(6{sup 2}P) atom and a ground-state Cs{sub 2} molecule. The prospects for achieving photoassociation of a cold-atom-dimer pair are thus discussed and found promising. The formalism can be generalized to the long-range interaction between molecules to investigate the formation of cold tetramers.

Authors:
;  [1];  [1]
  1. Laboratoire Aime Cotton, CNRS, UPR3321, Batiment 505, Universite Paris-Sud, F-91405 Orsay Cedex (France)
Publication Date:
OSTI Identifier:
21450779
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 82; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevA.82.042711; (c) 2010 The American Physical Society; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; CESIUM; DIMERS; EXCITED STATES; FINE STRUCTURE; GROUND STATES; INTERACTION RANGE; INTERACTIONS; MOLECULES; P STATES; PHOTON-ATOM COLLISIONS; PHOTON-MOLECULE COLLISIONS; POTENTIAL ENERGY; QUADRUPOLE MOMENTS; ALKALI METALS; ATOM COLLISIONS; COLLISIONS; DISTANCE; ELEMENTS; ENERGY; ENERGY LEVELS; METALS; MOLECULE COLLISIONS; PHOTON COLLISIONS

Citation Formats

Lepers, M, Dulieu, O, Kokoouline, V, and Department of Physics, University of Central Florida, Orlando, Florida 32816. Photoassociation of a cold-atom-molecule pair: Long-range quadrupole-quadrupole interactions. United States: N. p., 2010. Web. doi:10.1103/PHYSREVA.82.042711.
Lepers, M, Dulieu, O, Kokoouline, V, & Department of Physics, University of Central Florida, Orlando, Florida 32816. Photoassociation of a cold-atom-molecule pair: Long-range quadrupole-quadrupole interactions. United States. https://doi.org/10.1103/PHYSREVA.82.042711
Lepers, M, Dulieu, O, Kokoouline, V, and Department of Physics, University of Central Florida, Orlando, Florida 32816. 2010. "Photoassociation of a cold-atom-molecule pair: Long-range quadrupole-quadrupole interactions". United States. https://doi.org/10.1103/PHYSREVA.82.042711.
@article{osti_21450779,
title = {Photoassociation of a cold-atom-molecule pair: Long-range quadrupole-quadrupole interactions},
author = {Lepers, M and Dulieu, O and Kokoouline, V and Department of Physics, University of Central Florida, Orlando, Florida 32816},
abstractNote = {The general formalism of the multipolar expansion of electrostatic interactions is applied to the calculation of the potential energy between an excited atom (without fine structure) and a ground-state diatomic molecule at large mutual separations. Both partners exhibit a permanent quadrupole moment so that their mutual long-range interaction is dominated by a quadrupole-quadrupole term, which is attractive enough to bind trimers. Numerical results are given for an excited Cs(6{sup 2}P) atom and a ground-state Cs{sub 2} molecule. The prospects for achieving photoassociation of a cold-atom-dimer pair are thus discussed and found promising. The formalism can be generalized to the long-range interaction between molecules to investigate the formation of cold tetramers.},
doi = {10.1103/PHYSREVA.82.042711},
url = {https://www.osti.gov/biblio/21450779}, journal = {Physical Review. A},
issn = {1050-2947},
number = 4,
volume = 82,
place = {United States},
year = {Fri Oct 15 00:00:00 EDT 2010},
month = {Fri Oct 15 00:00:00 EDT 2010}
}