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pro vyhledávání: '"Uzun, N"'
While teleparallel $f(T)$ gravity has shown considerable potential in addressing cosmological tensions, such as the $H_0$ and $S_8$ discrepancies, we explore previously overlooked solution spaces within this framework that hold further promise. Speci
Externí odkaz:
http://arxiv.org/abs/2410.23068
In this study, we extend the standard cosmological model within the quadratic energy-momentum squared gravity (qEMSG) framework, introducing a nonminimal interaction between the usual material field ($T_{\mu\nu}$) and its accompanying quadratic energ
Externí odkaz:
http://arxiv.org/abs/2312.11453
Autor:
Akarsu, Özgür, Bouhmadi-López, Mariam, Katırcı, Nihan, Nazari, Elham, Roshan, Mahmood, Uzun, N. Merve
In this study, we first establish that gravity models incorporating matter-related terms, such as $f(\mathcal{L}_{\rm m})$, $f(g_{\mu\nu} T^{\mu\nu})$, and $f(T_{\mu\nu} T^{\mu\nu})$, into the usual matter Lagrangian density $\mathcal{L}_{\rm m}$, ar
Externí odkaz:
http://arxiv.org/abs/2306.11717
Autor:
Akarsu, Ozgur, Uzun, N. Merve
Publikováno v:
Phys. Dark Univ. 40, 101194 (2023)
Scale-independent EMSG is a particular model of energy-momentum squared gravity (EMSG) in which the new terms in the Einstein field equations arising from the EMSG theory enter with the same power as the usual terms from Einstein-Hilbert part of the
Externí odkaz:
http://arxiv.org/abs/2301.11204
Publikováno v:
Phys. Dark Univ. 42, 101305 (2023)
We explore the weak field and slow motion limits, Newtonian and Post-Newtonian limits, of the energy-momentum powered gravity (EMPG), viz., the energy-momentum squared gravity (EMSG) of the form $f(T_{\mu\nu}T^{\mu\nu})=\alpha (T_{\mu\nu}T^{\mu\nu})^
Externí odkaz:
http://arxiv.org/abs/2210.04668
Publikováno v:
In Physics of the Dark Universe July 2024 45
Publikováno v:
Phys. Rev. D 102, 124059 (2020)
We construct a generalization of the standard $\Lambda$CDM model, wherein we simultaneously replace the spatially flat Robertson-Walker metric with its simplest anisotropic generalization (LRS Bianchi I metric), and couple the cold dark matter to the
Externí odkaz:
http://arxiv.org/abs/2009.06517
Publikováno v:
In Physics of the Dark Universe December 2023 42
Publikováno v:
Eur. Phys. J. C 79 (2019) 846
We study a new model of Energy-Momentum Squared Gravity (EMSG), called Energy-Momentum Log Gravity (EMLG), constructed by the addition of the term $f(T_{\mu\nu}T^{\mu\nu})=\alpha \ln(\lambda\,T_{\mu\nu}T^{\mu\nu})$, envisaged as a correction, to the
Externí odkaz:
http://arxiv.org/abs/1903.11519
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