Influence of thermal radiation on singular behavior of the Universe
Cosmological models with inhomogeneous viscous fluids with a logarithmic equation of state in the Friedmann-Lemaitre-Robertson-Walker universe are considered. The influence of thermal effects caused by Hawking radiation on the visible horizon of the Universe on the change in the type of singularity of the dark Universe is investigated. It is shown that under the influence of thermal radiation, taking into account the viscosity property of a dark fluid, a qualitative change in the type of the Big Rip singularity is possible, which can lead to the absence of a singularity in the Universe at all.
Download file
Counter downloads: 32
Keywords
dark energy, Hawking radiation, singularity, viscous dark fluidAuthors
| Name | Organization | |
| Makarenko A.N. | Tomsk State Pedagogical University | andre@tspu.edu.ru |
| Timoshkin A.V. | Tomsk State Pedagogical University; Tomsk State University of Control Systems and Radioelectronics | alex.timosh@rambler.ru |
References
Riess A.G. et al. // Astron. J. - 1998. - V. 116. - P. 1009-10038.
Perlmutter S. et al. // Astron. - J. 1999. - V. 517. - P. 565-586.
Bamba K., Capozziello S., Nojiri S., and Odintsov S.D. // Astrophys. Space Sci. - 2012. - V. 342. - P. 155-310.
Nojiri S. and Odintsov S.D. // Phys. Lett. B. - 2003. - V. 562. - P. 147-152.
Nakamura K. et al. // J. Phys. G: Nucl. Part. Phys. - 2010. - V. 37. - P. 075021-075035.
Cai R.G. and Ohta N. // Phys. Rev. D. - 2010. - V. 81. - P. 084061-084077.
Nojiri S. and Odintsov S.D. // Phys. Dark Univ. - 2020. - V. 30. - P. 100695-100706.
Capozziello S., Cardone V., Elizalde E., et al. // Phys. Rev. D. - 2006. - V.73. - P. 043512.
Brevik I., Elizalde E., Nojiri S., and Odintsov S.D. // Phys. Rev. D. - 2011. - V. 84. - P. 103508.
Nojiri S. and Odintsov S.D. // Int. J. Geom. Meth. Mod. Phys. - 2007. - V. 4. - P. 115-145.
Nojiri S. and Odintsov S.D. // Phys. Rev. D. - 2005. - V. 72. - P. 023003.
Odintsov S.D., Oikonomou V.K., Timoshkin A.V., et al. // Ann. Phys. - 2018. - V. 398. - P. 238-253.
Capozziello S., D’Agostino R., and Luongo O. // Phys. Dark Univ. - 2018. - V. 20. - P. 1-12.
Brevik I., Gron O., de Haro J., et al. // Int. J. Mod. Phys. D. - 2017. - V. 26. - P. 1730024-1730095.
