Closed-form absorption probability of certain D = 5 and D = 4 black holes and leading-order cross-section of generic extremal p-branes | Zendy

Mirjam Cvetič | Zendy; H. Lü | Zendy; C.N. Pope | Zendy; T.A. Tran | Zendy

Open Access

Closed-form absorption probability of certain D = 5 and D = 4 black holes and leading-order cross-section of generic extremal p-branes

Author(s) -

Mirjam Cvetič,

H. Lü,

C.N. Pope,

T.A. Tran

Publication year - 1999

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 - 10.1088/1126-6708/1999/06/009

Subject(s) - massless particle , geodesic , physics , absorption cross section , charge (physics) , order (exchange) , absorption (acoustics) , section (typography) , black hole (networking) , connection (principal bundle) , mathematical physics , cross section (physics) , quantum electrodynamics , quantum mechanics , mathematical analysis , mathematics , geometry , optics , computer network , routing protocol , routing (electronic design automation) , finance , computer science , economics , link state routing protocol , business , advertising

We obtain the closed-form absorption probabilities for minimally-coupledmassless scalars propagating in the background of D=5 single-charge and D=4two-charge black holes. These are the only two examples of extremal black holeswith non-vanishing absorption probabilities that can be solved in closed formfor arbitrary incident frequencies. In both cases, the absorption probabilityvanishes when the frequency is below a certain threshold, and we discuss theconnection between this phenomenon and the behaviour of geodesics in theseblack hole backgrounds. We also obtain leading-order absorption cross-sectionsfor generic extremal p-branes, and show that the expression for thecross-section as a function of frequency coincides with the leading-orderdependence of the entropy on the temperature in the corresponding near-extremalp-branes.Comment: Latex (3 times), 20 page

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