Zobrazeno 1 - 10
of 239
pro vyhledávání: '"Oksanen, Markku A."'
Publikováno v:
Phys.Lett.B 850 (2024) 138483
The CPT theorem originally proven by L\"uders and Pauli ensures the equality of masses, lifetimes, magnetic moments and cross sections of any particle and its antiparticle. We show that in a Lorentz invariant quantum field theory described by its Lag
Externí odkaz:
http://arxiv.org/abs/2310.16008
The $R+R^2$ model of gravity with the corresponding shallow potential in the Einstein frame is consistent with the observations. Recently, many efforts have been made to generalize the $R+R^2$ (Starobinsky) model of inflation or use other shallow pot
Externí odkaz:
http://arxiv.org/abs/2211.05212
Phenomenological implications of the Mimetic Tensor-Vector-Scalar theory (MiTeVeS) are studied. The theory is an extension of the vector field model of mimetic dark matter, where a scalar field is also incorporated, and it is known to be free from gh
Externí odkaz:
http://arxiv.org/abs/2107.12161
Experimental observations indicate that gamma-ray bursts (GRB) and high-energy neutrino bursts may travel at different speeds with a typical delay measured at the order of hours or days. We discuss two potential interpretations for the GRB delay: dis
Externí odkaz:
http://arxiv.org/abs/2101.05758
Publikováno v:
Eur.Phys.J.C 81 (2021), 926
Theoretical models and experimental observations suggest that gamma-ray bursts (GRB) and high-energy neutrino bursts travelling through the interstellar space may reach the Earth at different speeds. We propose and study in details the mechanism i),
Externí odkaz:
http://arxiv.org/abs/2101.00954
Publikováno v:
In Physics of the Dark Universe December 2023 42
Publikováno v:
Jacob Bekenstein: The Conservative Revolutionary, World Scientific Publishing, 2019, pp. 271-299
We explore Sakharov's seminal idea that gravitational dynamics is induced by the quantum corrections from the matter sector. This was the starting point of the view that gravity has an emergent origin, which soon gained impetus due to the advent of b
Externí odkaz:
http://arxiv.org/abs/1805.03148
Autor:
Bufalo, Rodrigo, Oksanen, Markku
Publikováno v:
Phys. Rev. D 97, 044014 (2018)
We consider a recently proposed generalization of unimodular gravity, where the lapse function is constrained to be equal to a function of the determinant of the spatial metric $f(h)$, as a potential origin of a dark fluid with a generally $h$-depend
Externí odkaz:
http://arxiv.org/abs/1712.09535
Akademický článek
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We consider a way of eliminating the unwanted scalar graviton from Horava-Lifshitz gravity. That is achieved via introduction of certain additional constraints. We perform canonical analysis of both projectable and non-projectable versions of the the
Externí odkaz:
http://arxiv.org/abs/1509.06528