Zobrazeno 1 - 10
of 2 377
pro vyhledávání: '"Timoshkin, A."'
Bounce cosmological models containing a dark viscous fluid in a spatially flat Friedmann-Robertson-Walker (FRW) universe are considered. The universe evolution is described in terms of generalized equation of state (EoS) parameters, in presence of th
Externí odkaz:
http://arxiv.org/abs/2411.11456
Interest on the possible future scenarios the universe could have has grew substantially with breakthroughs on late-time acceleration. Holographic dark energy (HDE) presents a very interesting approach towards addressing late-time acceleration, prese
Externí odkaz:
http://arxiv.org/abs/2411.10984
Autor:
Brevik, I., Timoshkin, A. V.
Publikováno v:
Int. J. Geom. Meth. Mod. Phys. (2024) 2450181 (12 pages)
We study Little Rip (LR) and Pseudo Rip (PR) cosmological models containing two coupled fluids: dark energy and dark matter. We assume a spatially flat Friedmann-Robertson-Walker (FRW) universe. The interaction between the dark energy and the dark ma
Externí odkaz:
http://arxiv.org/abs/2404.05597
Holographic principles have proven to be a very interesting approach towards dealing with the issues of the late-time acceleration of the universe, which has resulted in a great amount of work on holographic dark energy models. We consider one such v
Externí odkaz:
http://arxiv.org/abs/2402.05784
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 12, Pp 1-24 (2024)
Abstract Interest on the possible future scenarios the universe could have has grew substantially with breakthroughs on late-time acceleration. Holographic dark energy (HDE) presents a very interesting approach towards addressing late-time accelerati
Externí odkaz:
https://doaj.org/article/b4e0de24a7b7452da7f9c56b36258d5f
Publikováno v:
High Voltage, Vol 9, Iss 5, Pp 1125-1135 (2024)
Abstract Polymeric insulation is a critical component of high voltage systems. However, exposure to high electric stress can cause partial discharges (PDs) to occur and may result in the deterioration of insulation and lead to dielectric failure. The
Externí odkaz:
https://doaj.org/article/4c544d09bb904fada10ad472e8f86960
Autor:
Brevik, I., Timoshkin, A. V.
Publikováno v:
Int. J. Mod. Phys. D 32, 235005 (2023)
In this article we extend an axion F(R) gravity model, and apply the holographic principle to describe in a unifying manner the early and the late-time universe when the general equation of state (EoS) contains a bulk viscosity. We assume a spatially
Externí odkaz:
http://arxiv.org/abs/2309.06916
Autor:
Trivedi, Oem, Timoshkin, Alexander V.
Publikováno v:
Eur.Phys.J.C 84 (2024) 3, 277
The discovery of universe's late-time acceleration and dark energy has overseen a great deal of research into cosmological singularities and particularly future singularities. Perhaps the most extreme of such singlarities is the big rip, which has pr
Externí odkaz:
http://arxiv.org/abs/2309.05047
Autor:
Timoshkin, A. V., Yurov, A. V.
We consider the Little Rip (LR), Pseudo Rip (PR) and bounce cosmological models in the Friedmann-Robertson-Walker (FRW) metric with nonzero spatial curvature. We describe the evolution of the universe using a generalized equation of state in the pres
Externí odkaz:
http://arxiv.org/abs/2305.02796
Autor:
Brevik, Iver, Timoshkin, Alexander V.
Publikováno v:
Symmetry 15, 257 (2023)
We consider the late-time accelerated universe in the Friedmann-Robertson-Walker (FRW) spacetime with a nonzero curvature, and investigate cosmological models when the cosmic fluid is taken to be inhomogeneous and viscous (bulk viscous), coupled to d
Externí odkaz:
http://arxiv.org/abs/2301.06972