Decoherent Scattering of Light Particles in a D-Brane Background

Details Decoherent Scattering of Light Particles in a D-Brane Background Decoherent Scattering of Light Particles in a D-Brane Background

1997-11-20

arxiv.org/abs/hep-th/9711163v1

Mod.Phys.Lett.A13:303-320,1998

Physics

High Energy Physics

High Energy Physics - Theory

18 pages LATEX, one figure (incorporated)

Scientific paper

10.1142/S021773239800036X

We discuss the scattering of two light particles in a D-brane background. It is known that, if one light particle strikes the D brane at small impact parameter, quantum recoil effects induce entanglement entropy in both the excited D brane and the scattered particle. In this paper we compute the asymptotic `out' state of a second light particle scattering off the D brane at large impact parameter, showing that it also becomes mixed as a consequence of quantum D-brane recoil effects. We interpret this as a non-factorizing contribution to the superscattering operator S-dollar for the two light particles in a Liouville D-brane background, that appears when quantum D-brane excitations are taken into account.

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