title: Optical potentials for inelastic scattering from many-body targets.
abstract: The standard text book Green's function possesses a self-energy that is known to be an optical potential for elastic scattering. The introduction of an optical potential reduces the complex many-body scattering problem into a tractable one-body problem. In this paper inelastic Green's functions are introduced and discussed which possess self-energies that are optical potentials for inelastic scattering. If the projectile is indistinguishable from particles comprising the target, intriguing aspects arise even for noninteracting particles.
authors.affiliation: Theoretische Chemie, Universitat Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany.
authors.forename: L S
authors.initials: LS
authors.lastname: Cederbaum