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Title
Charged black holes in string-inspired gravity. I. Causal structures and responses of the Brans-Dicke field
Author(s)
JakobHansen
Publication Year
2014-10-07
Abstract
We investigate gravitational collapses of charged black holes in string-inspired gravity models, including dilaton gravity and braneworld model, as well as f(R) gravity and the ghost limit. If we turn on gauge coupling, the causal structures and the responses of the Brans-Dicke field depend on the coupling between the charged matter and the BransDicke field. For Type IIA inspired models, a Cauchy horizon exists, while there is no Cauchy horizon for Type I or Heterotic inspired models. For Type IIA inspired models, the no-hair theorem is satisfied asymptotically, while it is biased to the weak coupling limit for Type I or Heterotic inspired models. Apart from string theory, we find that in the ghost limit, a gravitational collapse can induce inflation by itself and create one-way traversable wormholes without the need of other special initial conditions.
Journal Title
JHEP (Journal of High Energy Physics)
ISSN
1029-8479
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14305
http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART71819314
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