Long-range interactions between a He($2 ^3S$) atom and a He($2 ^3P$) atom for like isotopes

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dc.creatorZhang, J. -Y.
dc.creatorYan, Z. -C.
dc.creatorVrinceanu, D.
dc.creatorBabb, J. F.
dc.creatorSadeghpour, H. R.
dc.date2005-10-25
dc.date2005-11-30
dc.date.accessioned2026-07-07T06:48:34Z
dc.date.available2026-07-07T06:48:34Z
dc.descriptionFor the interactions between a He($2 ^3S$) atom and a He($2 ^3P$) atom for like isotopes, we report perturbation theoretic calculations using accurate variational wave functions in Hylleraas coordinates of the coefficients determining the potential energies at large internuclear separations. We evaluate the coefficient $C_{3}$ of the first order resonant dipole-dipole energy and the van der Waals coefficients $C_{6}$, $C_{8}$, and $C_{10}$ for the second order energies arising from the mutual perturbations of instantaneous electric dipole, quadrupole, and octupole interactions. We also evaluate the coefficient $C_{9}$ of the leading contribution to the third order energy. We establish definitive values including treatment of the finite nuclear mass for the ${}^3$He($2 ^3S$)--${}^3$He($2 ^3P$) and ${}^4$He($2 ^3S$)--${}^4$He($2 ^3P$) interactions.
dc.descriptionThis article has been accepted by Physical Review A
dc.identifierhttps://arxiv.org/abs/physics/0510232
dc.identifierhttp://arxiv.org/abs/physics/0510232
dc.identifierPhys. Rev. A, 73, 022710 (2006),
dc.identifierdoi:10.1103/PhysRevA.73.022710
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/104050
dc.subjectAtomic Physics
dc.titleLong-range interactions between a He($2 ^3S$) atom and a He($2 ^3P$) atom for like isotopes
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