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A: Atomphysik

A 20: Atoms in Fields

A 20.2: Vortrag

Freitag, 6. April 2001, 16:00–16:15, H1058

Giant dipole states of multi-electron atoms in crossed electric and magnetic fields — •Peter Schmelcher — Theoretische Chemie, Physikalische Chemie, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany

Giant dipole states of singly and doubly excited multi-electron atoms in crossed electric and magnetic fields are investigated. A gauge-independent approach to the separation of the center of mass yields a generalized multi-electron potential in crossed fields which serves as a basis for the study of the dipole states. For doubly excited systems a new class of highly symmetric decentred configurations is found and the properties of the corresponding resonances are determined. An outline on multiply excited systems is given.