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A: Atomphysik

Dichroic Effects in the multi-electron emission — •Jamal Berakdar — Max-Planck-Institut f"ur Mikrostrukturphysik, Weinberg 2, D-06210 Halle/S.

The simultaneous emission of two electrons from an isotropic target following

the absorption of a polarized VUV photon reveals characteristic dependence on

the helicity

of the absorbed photon. The dynamical and geometrical aspects

of this phenomenon

will be discussed

and illustrated using recent experimental and theoretical findings.

In addition, the polarized one-photon double emission case is contrasted

to the electron-impact ionization of circularly laser-pumped atoms.