Purely-long-range bound states of He ( 2 s 3 S ) + He ( 2 p 3 P )

We predict the presence and positions of purely-long-range bound states of {sup 4}He(2s {sup 3}S)+{sup 4}He(2p {sup 3}P) near the 2s {sup 3}S{sub 1}+2p {sup 3}P{sub 0,1} atomic limits. The results of the full multichannel and approximate models are compared, and we assess the sensitivity of the boun...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2003-08, Vol.68 (2), Article 022706
Main Authors: Venturi, V., Leo, P. J., Tiesinga, E., Williams, C. J., Whittingham, I. B.
Format: Article
Language:English
Subjects:
ATOM-ATOM COLLISIONS
ATOMIC AND MOLECULAR PHYSICS
ATOMS
BOSE-EINSTEIN CONDENSATION
BOUND STATE
ENERGY LEVELS
HELIUM
HELIUM 4
PHOTOCHEMISTRY
POTENTIALS
RADIATION PRESSURE
SCATTERING LENGTHS
SENSITIVITY
SPIN
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Summary:We predict the presence and positions of purely-long-range bound states of {sup 4}He(2s {sup 3}S)+{sup 4}He(2p {sup 3}P) near the 2s {sup 3}S{sub 1}+2p {sup 3}P{sub 0,1} atomic limits. The results of the full multichannel and approximate models are compared, and we assess the sensitivity of the bound states to atomic parameters characterizing the potentials. Photoassociation to these purely-long-range molecular bound states may improve the knowledge of the scattering length associated with the collisions of two ultracold spin-polarized {sup 4}He(2s {sup 3}S) atoms, which is important for the studies of Bose-Einstein condensates.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.68.022706