On some applications of the Sagnac effect
Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), University of Maragheh, P. O. Box 55136-553, Maragheh, Iran
2 Departamento de Física, CCEN - Universidade Federal da Paraíba; C.P. 5008, CEP 58.051-970, João Pessoa, PB, Brasil
3 Department of Mathematics, COMSATS University Islamabad, Lahore-Campus, 54000, Lahore, Pakistan
Accepted: 16 May 2022
Published online: 26 May 2022
Considering exact spacetimes representing rotating black holes and naked singularities, we study the possibility that the Sagnac effect detects i) higher dimensions, ii) rotation of black holes in higher dimension, and also, iii) distinguishes black holes from naked singularities. The results indicate that the Sagnac time delay gets affected by the presence of extra-dimension or its associated angular momentum. This time delay is also different in the spacetime of a naked singularity compared to that of a black hole. Hence, the Sagnac effect may be used as an experiment for better understanding of spacetimes with higher dimensions or those that admit naked singularities.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022