N-Electron Giant Dipole States in Crossed Electric and Magnetic Fields

Details N-Electron Giant Dipole States in Crossed Electric and Magnetic Fields N-Electron Giant Dipole States in Crossed Electric and Magnetic Fields

2005-08-02

arxiv.org/abs/physics/0508021v1

Phys. Rev. A 72, 033416 (2005)

Physics

Atomic Physics

37 pages, 22 figs. (plus subfigures)

Scientific paper

10.1103/PhysRevA.72.033416

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 and stability analysis are performed. A classification of the various modes, which are dominated by the magnetic field or the Coulomb interactions, is provided. Based on the MCTDH approach, we carry out a six-dimensional wave-packet dynamical study for the two-electron resonances, yielding in particular lifetimes of more than 0.1 $\mu$s for strong electric fields.

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