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dc.contributor.author | Egorov A. | |
dc.contributor.author | Kashargin P. | |
dc.contributor.author | Sushkov S. | |
dc.date.accessioned | 2018-09-19T20:27:09Z | |
dc.date.available | 2018-09-19T20:27:09Z | |
dc.date.issued | 2016 | |
dc.identifier.issn | 0264-9381 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/142915 | |
dc.description.abstract | © 2016 IOP Publishing Ltd.In 1921 Bach and Weyl derived the method of superposition to construct new axially symmetric vacuum solutions of general relativity. In this paper we extend the Bach-Weyl approach to non-vacuum configurations with massless scalar fields. Considering a phantom scalar field with the negative kinetic energy, we construct a multi-wormhole solution describing an axially symmetric superposition of N wormholes. The solution found is static, everywhere regular and has no event horizons. These features drastically tell the multi-wormhole configuration from other axially symmetric vacuum solutions which inevitably contain gravitationally inert singular structures, such as 'struts' and 'membranes', that keep the two bodies apart making a stable configuration. However, the multi-wormholes are static without any singular struts. Instead, the stationarity of the multi-wormhole configuration is provided by the phantom scalar field with the negative kinetic energy. Anther unusual property is that the multi-wormhole spacetime has a complicated topological structure. Namely, in the spacetime there exist 2N asymptotically flat regions connected by throats. | |
dc.relation.ispartofseries | Classical and Quantum Gravity | |
dc.subject | Bach-Weyl approach | |
dc.subject | phantom scalar field | |
dc.subject | wormholes | |
dc.title | Scalar multi-wormholes | |
dc.type | Article | |
dc.relation.ispartofseries-issue | 17 | |
dc.relation.ispartofseries-volume | 33 | |
dc.collection | Публикации сотрудников КФУ | |
dc.source.id | SCOPUS02649381-2016-33-17-SID84984801412 |