Publication:
Spinor fields in spherical symmetry: Einstein–Dirac and other space-times

Дата
2020
Авторы
Rybakov, Y. P.
Saha, B.
Bronnikov, K. A.
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Научные группы
Организационные подразделения
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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
© 2020, Società Italiana di Fisica (SIF) and Springer-Verlag GmbH Germany, part of Springer Nature.We discuss the static, spherically symmetric Einstein-spinor field system in the possible presence of various spinor field nonlinearities. We take into account that the spinor field energy–momentum tensor (EMT) has in general some off-diagonal components, whose vanishing due to the Einstein equations substantially affects the form of the spinor field itself and the space-time geometry. In particular, the EMT structure with any spinor field nonlinearities turns out to be the same as that of the EMT of a minimally coupled scalar field with a self-interaction potential. Therefore, many results previously obtained for systems with such scalar fields are directly extended to the Einstein-spinor field system. Some special solutions are obtained and discussed, in particular a solution for the Einstein–Dirac system (which lacks asymptotic flatness) and some examples with spinor field nonlinearities.
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Rybakov, Y. P. Spinor fields in spherical symmetry: Einstein–Dirac and other space-times / Rybakov, Y.P., Saha, B., Bronnikov, K.A. // European Physical Journal Plus. - 2020. - 135. - № 1. - 10.1140/epjp/s13360-020-00150-z
URI
https://www.doi.org/10.1140/epjp/s13360-020-00150-z
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85078076138&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000513507900032
 https://openrepository.mephi.ru/handle/123456789/20190
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