Fractional Branes and the Entropy of 4D Black Holes
| Autor: | Robert C. Myers, Neil R. Constable, Clifford V. Johnson |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2000 |
| Předmět: |
Physics
High Energy Physics - Theory Nuclear and High Energy Physics 010308 nuclear & particles physics FOS: Physical sciences String theory 01 natural sciences Black hole Theoretical physics General Relativity and Quantum Cosmology High Energy Physics::Theory High Energy Physics - Theory (hep-th) 0103 physical sciences Bound state Extremal black hole Brane cosmology Gauge theory 010306 general physics Entropy (arrow of time) Orbifold |
| Popis: | We reconsider the four dimensional extremal black hole constructed in type IIB string theory as the bound state of D1-branes, D5-branes, momentum, and Kaluza-Klein monopoles. Specifically, we examine the case of an arbitrary number of monopoles. Consequently, the weak coupling calculation of the microscopic entropy requires a study of the D1-D5 system on an ALE space. We find that the complete expression for the Bekenstein-Hawking entropy is obtained by taking into account the massless open strings stretched between the fractional D-branes which arise in the orbifold limit of the ALE space. The black hole sector therefore arises as a mixed Higgs-Coulomb branch of an effective 1+1 dimensional gauge theory. 12 pages. 1 figure. v2: References added |
| Databáze: | OpenAIRE |
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