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Dilatonic wormholes: Construction, operation, maintenance, and collapse to black holes
- Title
- Dilatonic wormholes: Construction, operation, maintenance, and collapse to black holes
- Authors
- Hayward S.A.; Kim S.-W.; Lee H.
- Ewha Authors
- 김성원
- SCOPUS Author ID
- 김성원
- Issue Date
- 2002
- Journal Title
- Physical Review D
- ISSN
- 0556-2821
- Citation
- Physical Review D vol. 65, no. 6
- Indexed
- SCOPUS
- Document Type
- Article
- Abstract
- The CGHS two-dimensional dilaton gravity model is generalized to include a ghost Klein-Gordon field, i.e., with a 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, as follows, (i) Static wormholes are constructed by irradiating an initially static black hole with the ghost field, (ii) The operation of a wormhole to transport matter or radiation between the two universes is described, including the back reaction on the wormhole, which is found to exhibit a type of neutral stability, (iii) It is shown how to maintain an operating wormhole in a static state, or return it to its original state, by turning up the ghost field, (iv) If the ghost field is turned off, either instantaneously or gradually, the wormhole collapses into a black hole. © 2002 The American Physical Society.
- DOI
- 10.1103/PhysRevD.65.064003
- Appears in Collections:
- 사범대학 > 과학교육과 > Journal papers
- Files in This Item:
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PhysRevD.65.pdf(384.92 kB)
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