Zobrazeno 1 - 10
of 270
pro vyhledávání: '"Delgado, Ruben"'
This paper investigates the massive gauge field within spacetime context from a $\mathbb{Z}_2$ quotient of the constant curvature black hole. We investigate how the matter field's back reaction affects the spacetime geometry, considering perturbation
Externí odkaz:
http://arxiv.org/abs/2410.16210
Publikováno v:
Physics Letters B 855 (2024) 138811
The leading $(\alpha')^3$-correction to the gravitational low-energy effective action of closed (type II) superstring theory in four-spacetime dimensions defines the Einstein-Grisaru-Zanon gravity action that is applied for a calculation of the leadi
Externí odkaz:
http://arxiv.org/abs/2405.03925
Autor:
Anand, Ankit, Delgado, Ruben Campos
Barrow proposed that quantum gravity effects might introduce fractal corrections to the area of the event horizon of black holes. The area law gets modified as $S \propto A^{1+\Delta/2}$, with $0\leq\Delta\leq 1$. It was so far unclear whether this a
Externí odkaz:
http://arxiv.org/abs/2403.13687
Autor:
Delgado, Ruben Campos
Publikováno v:
JHAP 3 (2023) 39-48
We explain how quantum gravity, treated as an effective field theory, might modify the evaporative evolution of a four-dimensional, non-extremal, non-rotating, charged black hole. With some approximations, we derive a set of coupled differential equa
Externí odkaz:
http://arxiv.org/abs/2302.07835
Autor:
Delgado, Ruben Campos, Forste, Stefan
We study $\mathcal{N}=2$ supersymmetric Jackiw-Teitelboim (JT) gravity at finite temperature coupled to matter. The matter fields are related to superconformal primaries by AdS/CFT duality. Due to broken super reparametrisation invariance in the SCFT
Externí odkaz:
http://arxiv.org/abs/2209.15456
Publikováno v:
Physics Letters B 838 (2023) 137690
We study physical properties of a Schwarzschild-type black hole in the framework of the recently proposed Starobinsky-Bel-Robinson (SBR) modified theory of gravity, working perturbatively in the new coupling constant. In particular, we compute the te
Externí odkaz:
http://arxiv.org/abs/2209.01574
We show that any 2D scalar field theory compactified on a cylinder and with a Fourier expandable potential $V$ is equivalent, in the small coupling limit, to a 1D theory involving a massless particle in a potential $V$ and an infinite tower of free m
Externí odkaz:
http://arxiv.org/abs/2205.07363
We study the quantum gravitational corrections to the geometry of a four-dimensionalcharged (Reissner-Nordstr\"om) Anti de Sitter black hole starting from an effective field theory approach to quantum gravity. We use the expression of the modified ho
Externí odkaz:
http://arxiv.org/abs/2205.00238
Dissertation/ Thesis
Autor:
Delgado, Ruben
An examination of the relationship between business acumen and chief human resource officers’ (CHROs) effectiveness has been missing from the practitioner and academic literatures. To remedy this deficiency, elements of the SHRM HR Competency Model
Externí odkaz:
http://hdl.handle.net/20.500.12613/6553
Autor:
Delgado, Ruben Campos
Starting from an effective action for quantum gravity, we calculate the quantum gravitational corrections to the Wald entropy of a four dimensional non-extremal Reissner-Nordstr\"om (RN) black hole in the limit of small electric charge, generalising
Externí odkaz:
http://arxiv.org/abs/2201.08293