Long-range interactions between two 2s excited hydrogen atoms

S. Jonsell, A. Saenz, P. Froelich, R. C. Forrey, R. Côté, A. Dalgarno

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


The temperature and density of the Bose-Einstein condensate was determined using two-photon spectroscopy of the 1s-2s line, through studies of the collisionally shifted and broadened spectral lines. The complex-scaling method was used to determine the autoionization widths. Perturbation theory was used to obtain the asymptotic expressions for the interaction energies, for nuclear separation larger than 22 atomic unit.

Original languageEnglish (US)
Article number042501
Pages (from-to)425011-425017
Number of pages7
JournalPhysical Review A. Atomic, Molecular, and Optical Physics
Issue number4
StatePublished - Apr 2002

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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