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 |
|