Results 91 to 100 of about 67,287 (207)

Impact of Quantum Gravity on the UV Sensitivity of Extremal Black Holes

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
ABSTRACT Recent work has revealed that extremal Kerr black holes may exhibit a sensitivity to higher‐derivative corrections to Einstein's equations, displaying singularities in the tidal forces at the horizon. However, in a purely gravitational context, this “ultraviolet sensitivity” translates into a strong dependence on the Wilson coefficients in the
Francesco Del Porro, Francesco Ferrarin, Alessia Platania   +2 more
wiley   +1 more source

Quantum Dust Cores of Black Holes and Their Quasi‐Normal Modes

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
We investigate the quasi‐normal mode spectrum of a gravitationally collapsed ball of dust, considering both a linear and a refined parabolic effective mass function for the quantum core. Furthermore, we account for the quantum leakage of dust particles outside the horizon.
T. Bambagiotti, L. Gallerani, A. Mentrelli, A. Giusti, R. Casadio   +4 more
wiley   +1 more source

Recent developments in canonical quantum gravity [PDF]

AIP Conference Proceedings, 1995
We give a summary of the nonperturbative approach to quantum gravity based on Ashtekar’s new variables and loop quantization, intended for a general audience of physicists. We discuss the possible connections of this approach with other areas of physics and the basic ideas of quantizing the gravitational field.
openaire   +1 more source

Learning about Quantum Gravity with a Couple of Nodes

Symmetry, Integrability and Geometry: Methods and Applications, 2012
Loop Quantum Gravity provides a natural truncation of the infinite degrees of freedom of gravity, obtained by studying the theory on a given finite graph. We review this procedure and we present the construction of the canonical theory on a simple graph,
Enrique F. Borja, Iñaki Garay, Francesca Vidotto   +2 more
doaj   +1 more source

Entropic Forces and Newton’s Gravitation

Entropy, 2020
Our subject of interest here is entropic forces, as re-interpreted by Verlinde with reference to gravitation, that is, by appealing to Verlinde’s conception of an entropic (statistically emergent) gravity advanced in [Physica A 2018, 511, 139].
Angelo Plastino, Mario Carlos Rocca
doaj   +1 more source

Bio‐Inspired Optimisation Methods Applied to Low Carbon Power and Energy Problems: A Survey

CAAI Transactions on Intelligence Technology, Volume 11, Issue 2, Page 297-315, April 2026.
ABSTRACT Bio‐inspired optimisation methods have been widely applied to complex real‐world problems, particularly in low‐carbon power and energy systems, where optimisation tasks often involve high‐dimensional, constrained and mixed‐integer characteristics.
Tianyu Hu, Shihao Zhao, Yuanjun Guo, Linxin Zhang, Zhile Yang   +4 more
wiley   +1 more source

The Hilbert space of Chern-Simons theory on the cylinder. A Loop Quantum Gravity approach

, 2009
As a laboratory for loop quantum gravity, we consider the canonical quantization of the three-dimensional Chern-Simons theory on a noncompact space with the topology of a cylinder.
Ashtekar A, Barut A O, Clisthenis P Constantinidis, de la Madrid R, Dirac P A M, Dirac P A M, Gabriel Luchini, Gel'fand I M, Henneaux M, Manuel Garcia Islas J, Matschull H J, Noui K, Olivier Piguet, Perez A, Rovelli C, Schwartz L, Thiemann T   +16 more
core   +2 more sources

Phase transitions and geothermodynamics of black holes in dRGT massive gravity

European Physical Journal C: Particles and Fields, 2019
In this paper, we study the thermodynamics and geothermodynamics of spherical black hole solutions in dRGT massive gravity in a new extended phase space. Inspire by the work of Kastor et al.
M. Chabab, H. El Moumni, S. Iraoui, K. Masmar   +3 more
doaj   +1 more source

Mitochondrial Ca2+ overload is a pivotal risk factor for lethal ventricular arrhythmias due to the oxidation of mitochondrial respirasome and energetic failure

British Journal of Pharmacology, Volume 183, Issue 7, Page 1404-1426, April 2026.
The data that support the findings of this study are available from the corresponding author upon reasonable request. Some data may not be made available because of privacy or ethical restrictions. Background and Purpose Ventricular arrhythmias are a leading cause of death among patients with cardiovascular diseases and are associated with elevated ...
Felipe de Jesús Salazar‐Ramírez, Luis Alberto Luévano‐Martínez, Abraham Méndez‐Fernández, Judith Bernal‐Ramírez, Carolina A. Morales‐Ochoa, Christian Silva‐Platas, Alfredo Cabrera‐Orefice, Ana C. Murrieta, José Luis Velasco‐Bolom, Gricelda Mendiola‐Garza, Flavio Contreras‐Torres, Guillermo Torre‐Amione, Ernesto A. Aiello, Gerardo García‐Rivas   +13 more
wiley   +1 more source

Towards (3+1) gravity through Drinfel'd doubles with cosmological constant

Physics Letters B, 2015
We present the generalisation to (3+1) dimensions of a quantum deformation of the (2+1) (Anti)-de Sitter and Poincaré Lie algebras that is compatible with the conditions imposed by the Chern–Simons formulation of (2+1) gravity.
Angel Ballesteros, Francisco J. Herranz, Pedro Naranjo   +2 more
doaj   +1 more source