Cylindrically and axially symmetric wormholes. Throats in vacuum?

This brief review discusses the existence conditions of wormhole throats and wormholes as global configurations in general relativity under the assumptions of cylindrical and axial symmetries. It is pointed out, in particular, that wormhole throats can exist in static, cylindrically symmetric space-times under slightly different conditions as compared with spherical symmetry. In cylindrically symmetric spacetime with rotation, throats can exist in the presence of ordinary matter or even in vacuum; however, there are substantial difficulties in obtaining asymptotically flat wormhole configurations without exotic matter: such examples are yet to be found. Some features of interest are discussed in static, axially symmetric configurations, including wormholes with singular rings and wrongly seeming regular wormhole throats in the Zipoy-Voorhees vacuum space-time. © 2014 Pleiades Publishing, Ltd.

Авторы
Номер выпуска
3
Язык
Английский
Страницы
171-175
Статус
Опубликовано
Том
20
Год
2014
Организации
  • 1 Center for Gravitation and Fundamental Metrology, VNIIMS, Ozernaya ul. 46, Moscow, 119361, Russian Federation
  • 2 Institute of Gravitation and Cosmology, PFUR, ul. Miklukho-Maklaya 6, Moscow, 117198, Russian Federation
  • 3 I. Kant Baltic Federal University, ul. Al. Nevskogo 14, Kaliningrad, 236041, Russian Federation
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/5010/