Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Demir, Durmus A."'
Autor:
Ghorani, Elham, Mitra, Samik, Rayimbaev, Javlon, Puliçe, Beyhan, Atamurotov, Farruh, Abdujabbarov, Ahmadjon, Demir, Durmuş
In this work, we study metric-Palatini gravity extended by the antisymmetric part of the affine curvature. This gravity theory leads to general relativity plus a geometric Proca field. Using our previous construction of its static spherically-symmetr
Externí odkaz:
http://arxiv.org/abs/2410.04993
Publikováno v:
Fortsch.Phys.(2024)
Symmergent gravity is an emergent gravity model with an $R+R^2$ curvature sector and an extended particle sector having new particles beyond the known ones. With constant scalar curvature, asymptotically flat black hole solutions are known to have no
Externí odkaz:
http://arxiv.org/abs/2403.02373
Autor:
Demir, Durmuş
The ultraviolet cutoff on a quantum field theory can be interpreted as a condensate of the affine curvature such that while the maximum of the affine action gives the power-law corrections, its minimum leads to the emergence of gravity. This mechanis
Externí odkaz:
http://arxiv.org/abs/2312.16270
Extended Palatini gravity is the metric-affine gravity theory characterized by zero torsion, nonzero metricity and a quadratic of the antisymmetric Ricci curvature. It reduces dynamically to general relativity plus a geometric Proca field. In this wo
Externí odkaz:
http://arxiv.org/abs/2309.11694
Publikováno v:
Class. Quantum Grav. 40 195003 (2023)
In this paper, we report on exact charged black hole solutions in symmergent gravity with Maxwell field. Symmergent gravity induces the gravitational constant $G$, quadratic curvature coefficient $c_{\rm O}$, and the vacuum energy $V_{\rm O}$ from th
Externí odkaz:
http://arxiv.org/abs/2308.08415
Publikováno v:
Class. Quantum Grav. 40 (2023) 184001
In this paper, we study circular orbits, effective potential, and thin-accretion disk of a black hole in symmergent gravity within the Novikov-Thorne model in a way including the energy flux and temperature distribution. We determine bounds on symmer
Externí odkaz:
http://arxiv.org/abs/2308.03947
Publikováno v:
Physics of the Dark Universe 42 (2023), 101314
Symmergent gravity is an emergent gravity framework in which gravity emerges guided by gauge invariance, accompanied by new particles, and reconciled with quantum fields. In this paper, we perform a detailed study of the quasinormal modes and greybod
Externí odkaz:
http://arxiv.org/abs/2306.09231
Autor:
Demir, Durmus
Publikováno v:
Phys. Rev. D 107 (2023) 105014
The ultraviolet (UV) cutoff on a quantum field theory (QFT) can explicitly break or conserve the Poincare (translation) symmetry. And the very same cutoff can explicitly break or conserve the gauge symmetry. In the present work, we perform a systemat
Externí odkaz:
http://arxiv.org/abs/2305.01671
Autor:
Ghorani, Elham, Puliçe, Beyhan, Atamurotov, Farruh, Rayimbaev, Javlon, Abdujabbarov, Ahmadjon, Demir, Durmuş
Extended metric-Palatini gravity, quadratic in the antisymmetric part of the affine curvature, is known to lead to the general relativity plus a geometric Proca field. The geometric Proca, equivalent of the non-metricity vector in the torsion-free af
Externí odkaz:
http://arxiv.org/abs/2304.03660
Publikováno v:
Phys.Rev.D 107 (2023) 4, 045003
In view of various field-theoretic reasons, in the present work, we study the question of if the usual dimensional regularization can be extended to quantum field theories with an ultraviolet cutoff (Poincare-breaking scale) in a way preserving all t
Externí odkaz:
http://arxiv.org/abs/2301.03323