Investigating Brane Resolution with Perturbative Dynamics | Zendy

Justin F. Vázquez-Poritz | Zendy

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Investigating Brane Resolution with Perturbative Dynamics

Author(s) -

Justin F. Vázquez-Poritz

Publication year - 2002

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2002/03/008

Subject(s) - geodesic , massless particle , physics , instanton , connection (principal bundle) , brane , mathematical physics , dynamics (music) , classical mechanics , quantum electrodynamics , mathematical analysis , geometry , mathematics , acoustics

We investigate the transition between singular and non-singular geometriesfrom the vantage point of perturbative field dynamics. In particular, we obtainthe closed-form absorption probability for minimally-coupled massless scalarspropagating in the background of a heterotic 5-brane on a Taub-NUT instanton.This is an exact calculation for arbitrary incident frequencies. For thesingular geometry, the absorption probability vanishes when the frequency isbelow a certain threshold, and for the non-singular case it vanishes for allfrequencies. We discuss the connection between this phenomenon and the behaviorof geodesics in this background. We also obtain exact quasinormal modes.Comment: 10 pages, LaTeX, references adde

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