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Dilatonic wormholes and black holes

Title
Dilatonic wormholes and black holes
Authors
Hayward, SAKim, SWLee, HJ
Ewha Authors
김성원
SCOPUS Author ID
김성원scopus
Issue Date
2003
Journal Title
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
ISSN
0374-4884JCR Link
Citation
vol. 42, pp. S31 - S35
Keywords
wormholesdilatonblack holesstability
Publisher
KOREAN PHYSICAL SOC
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
The CGHS two-dimensional dilaton gravity model is generalized to include a ghost Klein-Gordon field, i.e. with negative gravitational coupling. This exotic radiation supports the existence of static traversible wormhole solutions, analogous to Morris-Thorne wormholes. Since the field equations are explicitly integrable, concrete examples can be given of various dynamic wormhole processes. In particular, if the ghost radiation supporting the wormhole is turned off and allowed to disperse, the wormhole collapses into a black hole. The dynamic stability of the wormhole is demonstrated by sending a pulse of radiation through it, forming a non-static wormhole, followed by a pulse of exotic radiation which returns it to a different static state.
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사범대학 > 과학교육과 > Journal papers
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