Volume 71, Number 3, August 2005
|Page(s)||373 - 379|
|Section||Atomic and molecular physics|
|Published online||01 July 2005|
Multi-electron giant dipole resonances of atoms in crossed electric and magnetic fields
Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
2 Physikalisches Institut, Universität Heidelberg - Philosophenweg 12 69120 Heidelberg, Germany
Accepted: 30 May 2005
Multi-electron giant dipole resonances of atoms in crossed electric and magnetic fields are investigated. Stationary configurations corresponding to a highly symmetric arrangement of the electrons on a decentered circle are derived, and a normal-mode stability analysis is performed. A classification of the various modes, which are dominated either by the magnetic or Coulomb interactions, is provided. A six-dimensional wave-packet dynamical study, based on the MCTDH approach, is accomplished for the two-electron resonances, yielding in particular lifetimes of more than 0.1 for strong electric fields.
PACS: 32.60.+i – Zeeman and Stark effects / 32.10.-f – Properties of atoms / 32.30.-r – Atomic spectra
© EDP Sciences, 2005
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