Photoassociation spectroscopy of ultracold metastable ^3He dimers

Abstract

The bound states of the fermionic ^3He(2 ^3S_1)+ ^3He(2 ^3P_j)system, where j=0,1,2, are investigated using the recently available ab initio short-range ${}^{1,3,5}{\Sigma }_{g,u}^{+}$ and ${}^{1,3,5}{\Pi }_{g,u}$ potentials computed by Deguilhem et al. (J. Phys. B: At. Mol. Opt. Phys., 2009, 42, 015102). Single-channel and multichannel calculations have been undertaken in order to investigate the effects of Coriolis and non-adiabatic couplings. The possible experimental observability of the theoretical levels is assessed using criteria based upon the short-range character of each level and their coupling to metastable ground states. Purely long-range levels have been identified and 30 short-range levels near five asymptotes are suggested for experimental investigation.

11 pages. Submitted to Physical Chemistry Chemical Physics themed issue on Physics and Chemistry of Cold Molecules. Expanded discussion plus minor typos corrected

References in corpus (2)

• A Degenerate Bose-Fermi Mixture of Metastable Atoms
• Effects of non-adiabatic and Coriolis couplings on the bound states of He(2 ^3S)+He(2 ^3P)

Cited by in corpus (1)

• Long-range states in excited ultracold 3He*-4He* dimers