Europhys. Lett.
Volume 70, Number 1, April 2005
Page(s) 81 - 87
Section Atomic and molecular physics
Published online 09 March 2005
Europhys. Lett., 70 (1), pp. 81-87 (2005)
DOI: 10.1209/epl/i2004-10463-3

Probing two-particle orbital orientation of bound states

J. Berakdar and N. M. Kabachnik

Max-Planck Institut für Mikrostrukturphysik - Weinberg 2, 06120 Halle, Germany

received 16 November 2004; accepted in final form 4 February 2005
published online 9 March 2005

Under certain conditions specified in this work, a two-particle orbital orientation of bound states can be detected by means of double photoemission with polarized light. These conclusions are based on a tensorial analysis of the dipole transition amplitudes and are illustrated by a numerical study of double photoemission from helium oriented by laser-pumping. The analytical and numerical results demonstrate the interrelation between two-particle correlation and orbital polarization.

32.80.Fb - Photoionization of atoms and ions.
31.25.Jf - Electron correlation calculations for atoms and ions: excited states.
74.20.-z - Theories and models of superconducting state.

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