Publication:
The simplest wormhole in Rastall and k-essence theories

Дата
2021
Авторы
Barcellos, V. A. G.
de, Carvalho, L. P.
Bronnikov, K. A.
Fabris, J. C.
Journal Title
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Volume Title
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Научные группы
Организационные подразделения
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Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Аннотация
© 2021, The Author(s).The geometry of the Ellis–Bronnikov wormhole is implemented in the Rastall and k-essence theories of gravity with a self-interacting scalar field. The form of the scalar field potential is determined in both cases. A stability analysis with respect to spherically symmetric time-dependent perturbations is carried out, and it shows that in k-essence theory the wormhole is unstable, like the original version of this geometry supported by a massless phantom scalar field in general relativity. In Rastall’s theory, it turns out that a perturbative approach reveals the same inconsistency that was found previously for black hole solutions: time-dependent perturbations of the static configuration prove to be excluded by the equations of motion, and the wormhole is, in this sense, stable under spherical perturbations.
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Цитирование
The simplest wormhole in Rastall and k-essence theories / Barcellos, V.A.G. [et al.] // European Physical Journal C. - 2021. - 81. - № 5. - 10.1140/epjc/s10052-021-09164-y
URI
https://www.doi.org/10.1140/epjc/s10052-021-09164-y
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85105508972&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000727325000002
 https://openrepository.mephi.ru/handle/123456789/24089
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