Microcanonical D-branes and Back Reaction

Details Microcanonical D-branes and Back Reaction Microcanonical D-branes and Back Reaction

1996-10-08

arxiv.org/abs/hep-th/9610045v2

Nucl.Phys.B491:249-262,1997

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, LaTeX file. Some typos corrected, 1 reference added

Scientific paper

10.1016/S0550-3213(97)00085-0

We compare the emission rates from excited D-branes in the microcanonical ensemble with back reaction corrected emission rates from black holes in field theory. In both cases, the rates in the high energy tail of the spectrum differ markedly from what a canonical ensemble or free field theory approach would yield. Instead of being proportional to a Bose-Einstein distribution function, the rates in the high energy tail are proportional to $\exp (-\Delta S_{BH})$ where $\Delta S_{BH}$ is the difference in black hole entropies before and after emission. After including the new effects, we find agreement, at leading order, between the D-brane and field theory rates over the entire range of the spectrum.

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