| Autor: |
Alejandra Castro, Victor Godet, Finn Larsen, Yangwenxiao Zeng |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Journal of High Energy Physics, Vol 2018, Iss 5, Pp 1-46 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
1029-8479 |
| DOI: |
10.1007/JHEP05(2018)079 |
| Popis: |
Abstract We compute the leading logarithmic correction to black hole entropy on the non-BPS branch of 4D N≥2 $$ \mathcal{N}\ge 2 $$ supergravity theories. This branch corresponds to finite temperature black holes whose extremal limit does not preserve supersymmetry, such as the D0 − D6 system in string theory. Starting from a black hole in minimal Kaluza-Klein theory, we discuss in detail its embedding into N=8 $$ \mathcal{N}=8 $$, 6, 4, 2 supergravity, its spectrum of quadratic fluctuations in all these environments, and the resulting quantum corrections. We find that the c-anomaly vanishes only when N≥6 $$ \mathcal{N}\ge 6 $$, in contrast to the BPS branch where c vanishes for all N≥2 $$ \mathcal{N}\ge 2 $$. We briefly discuss potential repercussions this feature could have in a microscopic description of these black holes. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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