Double excitations of helium in weak static electric fields (Articolo in rivista)

Type
Label
  • Double excitations of helium in weak static electric fields (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.96.043002 (literal)
Alternative label
  • C. Sathe, M. Stroim, M. Agaker, J. Soderstrom, J-E. Rubensson, R. Richter, M. Alagia, S. Stranges, T.W. Gorczyca, F. Robicheaux (2006)
    Double excitations of helium in weak static electric fields
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • C. Sathe, M. Stroim, M. Agaker, J. Soderstrom, J-E. Rubensson, R. Richter, M. Alagia, S. Stranges, T.W. Gorczyca, F. Robicheaux (literal)
Pagina inizio
  • 043002-1 (literal)
Pagina fine
  • 043002-4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.aps.org/doi/10.1103/PhysRevLett.96.043002 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 96 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a Physics Department, Box 530, S-751 21 Uppsala, Sweden b Sincrotrone Trieste, I-340 12 Trieste, Italy c INFM-TASC, Padriciano 99, I-340 12 Trieste, Italy d Dipartimento di Chimica, Universitá di Roma La Sapienza, INFM Unit, 00185 Rome, Italy e Department of Physics, Western Michigan University, Kalamazoo, MI 49008-5252, United States f Department of Physics, Auburn University, Auburn, AL 3684, United States (literal)
Titolo
  • Double excitations of helium in weak static electric fields (literal)
Abstract
  • A dramatic electric field dependence has been observed in the fluorescence yield spectrum of the doubly excited states in helium, where a rich phenomenology is encountered below the N=2 threshold. Fluorescence yields of certain states can be tuned to zero, while other dipole-forbidden states are significantly enhanced, for fields much weaker than 1kV/cm. Using an R-matrix multichannel quantum defect theory, spherical-to-parabolic frame transformation method, we are able to reproduce the main features of the observed spectrum, and we discuss the qualitative behavior in terms of weak electric field mixing. © 2006 The American Physical Society. (literal)
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