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The Stability and structure of Li+Ps2 and Na+Ps2

Mitroy, Jim and Ryzhikh, G. G. (1999). The Stability and structure of Li+Ps2 and Na+Ps2. Journal of Physics B: Atomic, Molecular and Optical Physics,32(21):621-628.

Document type: Journal Article
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Title The Stability and structure of Li+Ps2 and Na+Ps2
Author Mitroy, Jim
Ryzhikh, G. G.
Journal Name Journal of Physics B: Atomic, Molecular and Optical Physics
Publication Date 1999
Volume Number 32
Issue Number 21
ISSN 0953 4075   (check CDU catalogue  open catalogue search in new window)
Start Page 621
End Page 628
Total Pages 8
Place of Publication Bristol, UK
Publisher IOP Publishing
HERDC Category C4 - Journal Article - Letter or Note (internal)
Abstract The fixed-core stochastic variational method has been used to demonstrate the existence of an electronically stable ground state for the Li+Ps2 and Na+Ps2 systems. The stability of Li+Ps2 has been indicated previously in an ab initio calculation by Varga, but the present estimate of the binding energy is much closer to convergence. The Li+Ps2 system has a binding energy of 0.013 149 Hartree and a 2 annihilation rate of 3.86 ? 109 s-1. The Na+Ps2 system has a binding energy of 0.005 736 Hartree and an annihilation rate of 4.02 ? 109 s-1. Examination of the interparticle expectation values, correlation functions and the annihilation rates suggests that both of these systems can be best described as a Ps2 molecule weakly bound to an alkali atom cation.
DOI http://dx.doi.org/10.1088/0953-4075/32/21/102   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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