Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Aydemir, Ufuk"'
Autor:
Aydemir, Ufuk, Elbistan, Mahmut
Breaking diffeomorphism invariance has been motivated in the literature in several contexts, including emergent General Relativity (GR). For this to be an admissible possibility, GR augmented with minor violations of general covariance must yield onl
Externí odkaz:
http://arxiv.org/abs/2412.07848
Autor:
Aydemir, Ufuk
Publikováno v:
Turk. J. Phys. 48 (2024) 3, 50-74
We investigate the effects of an early cosmological period dominated by primordial 2-2-holes on axion dark matter. The 2-2-holes emerge as a new family of horizonless classical solutions for ultracompact matter distributions in quadratic gravity, a c
Externí odkaz:
http://arxiv.org/abs/2312.17073
We investigate an $\mathrm{SO}(10)$ grand unification scenario where the complex 10-dimensional scalar multiplet, containing the Standard Model (SM) Higgs boson, resides at the TeV scale altogether. The resulting low-energy model is a 2-Higgs-doublet
Externí odkaz:
http://arxiv.org/abs/2209.04705
Autor:
Aydemir, Ufuk, Ren, Jing
Publikováno v:
Class. Quant. Grav. 40 (2023) 18, 185004
With the recent progress in observations of astrophysical black holes, it has become more important to understand in detail the physics of strongly gravitating horizonless objects. If the objects identified in the observations are indeed horizonless
Externí odkaz:
http://arxiv.org/abs/2201.00025
Autor:
AYDEMİR, Ufuk1 uaydemir@physics.edu.tr
Publikováno v:
Turkish Journal of Physics. 2024, Vol. 48 Issue 3, p50-74. 25p.
Autor:
Aydemir, Ufuk, Ren, Jing
Primordial black holes have been considered as an attractive dark matter candidate, whereas some of the predictions heavily rely on the near-horizon physics that remains to be tested experimentally. As a concrete alternative, thermal 2-2-holes closel
Externí odkaz:
http://arxiv.org/abs/2011.13154
Autor:
Aydemir, Ufuk
We discuss the astrophysical and cosmological implications of having primordial thermal 2-2-hole remnants as dark matter. Thermal 2-2-holes emanate in quadratic gravity as horizonless classical solutions for ultracompact distributions of relativistic
Externí odkaz:
http://arxiv.org/abs/2007.00026
Publikováno v:
Phys. Rev. D 102, 024058 (2020)
Primordial black holes that survive until the present have been considered as a dark matter candidate. In this paper we argue that primordial 2-2-hole remnants provide a more promising and testable option. 2-2-holes arise in quadratic gravity as a ne
Externí odkaz:
http://arxiv.org/abs/2003.10682
Autor:
Aydemir, Ufuk
Publikováno v:
Eur. Phys. J. C79 (2019), 325
The Spectral Action Principle in noncommutative geometry derives the actions of the Standard Model and General Relativity (along with several other gravitational terms) by reconciling them in a geometric setting, and hence offers an explanation for t
Externí odkaz:
http://arxiv.org/abs/1902.08090
Publikováno v:
Phys. Rev. D 101, 015011 (2020)
Motivated by the $R_{D^{(*)}}$ anomalies, we investigate an $\mathrm{SO}(10)$ grand unification scenario where a charge $-1/3$ scalar leptoquark ($S_1$) remains as the only new physics candidate at the TeV scale. This leptoquark along with the Standa
Externí odkaz:
http://arxiv.org/abs/1902.08108