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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)
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- http://link.aps.org/doi/10.1103/PhysRevLett.96.043002 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
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- 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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