Born-Infeld corrections to the entropy function of heterotic black holes
We use the black hole entropy function to study the effect of Born-Infeld terms on the entropy of extremal black holes in heterotic string theory in four dimensions. We find that after adding a set of higher curvature terms to the effective action, attractor mechanism works and Born-Infeld terms contribute to the stretching of near horizon geometry. In the alpha' -> 0 limit, the solutions of attractor equations for moduli fields and the resulting entropy, are in conformity with the ones for standard two charge black holes.
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| Main Author: | |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedade Brasileira de Física
2007
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000300005 |
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| Summary: | We use the black hole entropy function to study the effect of Born-Infeld terms on the entropy of extremal black holes in heterotic string theory in four dimensions. We find that after adding a set of higher curvature terms to the effective action, attractor mechanism works and Born-Infeld terms contribute to the stretching of near horizon geometry. In the alpha' -> 0 limit, the solutions of attractor equations for moduli fields and the resulting entropy, are in conformity with the ones for standard two charge black holes. |
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