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Scattering Path Formalism For The Propagation Of Interacting Compounds In Ordered And Disordered Materials

Author

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  • J. BERAKDAR

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

Abstract

This study presents a theoretical framework for the propagation of a compound consisting ofNinteracting particles in a multicenter potential. A novel Green operator approach is proposed that disentangles the geometrical and dynamical properties of the scatterers from the internal evolution of the projectile compound. Furthermore, the transition operator for the scattering from the multicenter potential is expanded in terms of many-body scattering path operators, which in turn are expressed in terms of single site transition operators that are amenable to computations. To deduce the correlated many-body Green operator of the scattering compound, a cumulative method is designed that reduces the problem to the evaluation of Green operators of systems with a reduced number of interacting particles. This is particularly useful for efficient calculations and encompasses the usual perturbative approaches.

Suggested Citation

  • J. Berakdar, 2000. "Scattering Path Formalism For The Propagation Of Interacting Compounds In Ordered And Disordered Materials," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 7(03), pages 205-210.
    • Handle: RePEc:wsi:srlxxx:v:07:y:2000:i:03:n:s0218625x00000257
    DOI: 10.1142/S0218625X00000257
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