Publication: General parametrization of wormhole spacetimes and its application to shadows and quasinormal modes
Дата
2021
Авторы
Journal Title
Journal ISSN
Volume Title
Издатель
Аннотация
© 2021 American Physical Society.The general parametrization for spacetimes of spherically symmetric Lorentzian, traversable wormholes in an arbitrary metric theory of gravity is presented. The parametrization is similar in spirit to the post-Newtonian parametrized formalism, but with validity that extends beyond the weak field region and covers the whole space. Our method is based on a continued-fraction expansion in terms of a compactified radial coordinate. Calculations of shadows and quasinormal modes for various examples of parametrization of known wormhole metrics that we have performed show that, for most cases, the parametrization provides excellent accuracy already at the first order. Therefore, only a few parameters are dominant and important for finding potentially observable quantities in a wormhole background. We have also extended the analysis to the regime of slow rotation.
Описание
Ключевые слова
Цитирование
Konoplya, R. A. General parametrization of wormhole spacetimes and its application to shadows and quasinormal modes / Konoplya, R.A., Pappas, T.D., Bronnikov, K.A. // Physical Review D. - 2021. - 103. - № 12. - 10.1103/PhysRevD.103.124062
URI
https://www.doi.org/10.1103/PhysRevD.103.124062
https://www.scopus.com/record/display.uri?eid=2-s2.0-85108996801&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000669042800009
https://openrepository.mephi.ru/handle/123456789/24314
https://www.scopus.com/record/display.uri?eid=2-s2.0-85108996801&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000669042800009
https://openrepository.mephi.ru/handle/123456789/24314