Results 101 to 110 of about 49,504 (245)
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 +3 more
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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 +2 more
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A Lorentz-Covariant Connection for Canonical Gravity
Symmetry, Integrability and Geometry: Methods and Applications, 2011 We construct a Lorentz-covariant connection in the context of first order canonical gravity with non-vanishing Barbero-Immirzi parameter. To do so, we start with the phase space formulation derived from the canonical analysis of the Holst action in which
Marc Geiller +3 more
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Relational Observables in Gravity: a Review
Symmetry, Integrability and Geometry: Methods and Applications, 2012 We present an overview on relational observables in gravity mainly from a loop quantum gravity perspective. The gauge group of general relativity is the diffeomorphism group of the underlying manifold.
Johannes Tambornino
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The Holst spin foam model via cubulations
New Journal of Physics, 2012 Spin foam models are an attempt at a covariant or path integral formulation of canonical loop quantum gravity. The construction of such models usually relies on the Plebanski formulation of general relativity as a constrained BF theory and is based on ...
Aristide Baratin +2 more
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Symmetric configurations highlighted by collective quantum coherence
European Physical Journal C: Particles and Fields, 2017 Recent developments in quantum gravity have shown the Lorentzian treatment to be a fruitful approach towards the emergence of macroscopic space-times. In this paper, we discuss another related aspect of the Lorentzian treatment: we argue that collective ...
Dennis Obster, Naoki Sasakura
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Symplectic Structure of Intrinsic Time Gravity
Universe, 2016 The Poisson structure of intrinsic time gravity is analysed. With the starting point comprising a unimodular three-metric with traceless momentum, a trace-induced anomaly results upon quantization.
Eyo Eyo Ita, Amos S. Kubeka
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ON THE AREA OPERATORS OF THE HUSAIN–KUCHAŘ–ROVELLI MODEL AND CANONICAL/LOOP QUANTUM GRAVITY [PDF]
, 1998 GIOVANNI AMELINO-CAMELIA
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Tunnelling to holographic traversable wormholes
SciPost PhysicsWe study nonperturbative effects of quantum gravity in a system consisting of a coupled pair of holographic CFTs. The AdS$_4$/CFT$_3$ system has three possible ground states: two copies of empty AdS, a pair of extremal AdS black holes, and an eternal AdS
Suzanne Bintanja, Ben Freivogel, Andrew Rolph
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Relating spin foams and canonical quantum gravity:
, 2004 Suresh K Maran
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