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The formation and quantum mechanical evaporation of black holes in two spacetime dimensions can be studied using effective classical field equations, recently introduced by Callan {\it et al.} We find that gravitational collapse always…

高能物理 - 理论 · 物理学 2008-11-26 J. Russo , L. Susskind , L. Thorlacius

The inclusion of the quantum fluctuations of the metric in the geometric action is a promising avenue for the understanding of the quantum properties of gravity. In this approach the metric is decomposed in the sum of a classical and of a…

广义相对论与量子宇宙学 · 物理学 2021-04-19 Jin-Zhao Yang , Shahab Shahidi , Tiberiu Harko , Shi-Dong Liang

Recent results show that important singularities in General Relativity can be naturally described in terms of finite and invariant canonical geometric objects. Consequently, one can write field equations which are equivalent to Einstein's…

广义相对论与量子宇宙学 · 物理学 2014-03-06 Ovidiu Cristinel Stoica

Using effective field theory techniques, we compute quantum corrections to spherically symmetric solutions of Einstein's gravity and focus in particular on the Schwarzschild black hole. Quantum modifications are covariantly encoded in a…

高能物理 - 理论 · 物理学 2017-05-24 Xavier Calmet , Basem Kamal El-Menoufi

The structure of the Cauchy Horizon singularity of a black hole formed in a generic collapse is studied by means of a renormalization group equation for quantum gravity. It is shown that during the early evolution of the Cauchy Horizon the…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Alfio Bonanno , Martin Reuter

Quantum gravity may shed light on the prehistory of the universe. Quantum corrections to gravity affect the dynamics of the expansion of the universe. Their influence is studied on the example of the exactly solvable quantum model. The…

广义相对论与量子宇宙学 · 物理学 2019-11-05 V. E. Kuzmichev , V. V. Kuzmichev

Quantum mechanics for matter fields moving in an evaporating black hole spacetime is formulated in fully four-dimensional form according to the principles of generalized quantum theory. The resulting quantum theory cannot be expressed in a…

广义相对论与量子宇宙学 · 物理学 2008-02-03 James B. Hartle

Emergent modified gravity provides a covariant, effective framework for obtaining spherically symmetric black hole solutions in models of loop quantum gravity with scale-dependent holonomy modifications. Exact solutions for vacuum black…

广义相对论与量子宇宙学 · 物理学 2024-07-18 Idrus Husin Belfaqih , Martin Bojowald , Suddhasattwa Brahma , Erick I. Duque

In this paper, we investigate the quantum gravitational corrections to the thermodynamical quantities of Reissner-Nordstr\"om black holes within the framework of effective field theory. The effective action originates from integrating out…

广义相对论与量子宇宙学 · 物理学 2026-02-12 Yong Xiao , Qiang Wang , Aonan Zhang

Quantized expressions for the gravitational energy and momentum are derived from a linearized theory of teleparallel gravity. The derivation relies on a second-quantization procedure that constructs annihilation and creation operators for…

广义相对论与量子宇宙学 · 物理学 2011-10-18 S. C. Ulhoa

We consider static solutions of two dimensional dilaton gravity models as toy laboratories to address the question of the final fate of black holes. A non perturbative correction to the CGHS potential term is shown to lead classically to an…

高能物理 - 理论 · 物理学 2009-03-27 G. Alejandro , F. D. Mazzitelli , C. Núñez

We investigate the inner structure of an evaporating charged black hole, within the context of semiclassical dilaton gravity in two dimensions. The matter fields are charged, allowing the evaporation of both the mass and charge of the black…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Amos Ori

Quantum field theory in a semiclassical background can be derived as an approximation to quantum gravity from a weak-coupling expansion in the inverse Planck mass. Such an expansion is studied for evolution on "nice-slices" in the spacetime…

高能物理 - 理论 · 物理学 2008-11-26 Steven B. Giddings

Usually quantum theory is formulated in terms of the evolution of states through spacelike surfaces. However, a generalization of this formulation is needed for field theory in spacetimes not foliable by spacelike surfaces, or in quantum…

广义相对论与量子宇宙学 · 物理学 2007-05-23 James B. Hartle

We provide the quantization of a charged black hole. We consider a redefinition of the scalar constraint in order to render the algebra of constraints as a Lie algebra. We apply loop quantum gravity techniques adhered to a novel improved…

广义相对论与量子宇宙学 · 物理学 2023-12-19 Florencia Benitez , Esteban Mato , Javier Olmedo

Emergent modified gravity provides a covariant framework for holonomy effects in models of loop quantum gravity with consistent black hole solutions coupled to a scalar field. Several independent studies of the Hawking thermal distribution…

广义相对论与量子宇宙学 · 物理学 2026-02-13 Idrus Husin Belfaqih , Martin Bojowald , Suddhasattwa Brahma , Erick I. Duque

We review some recent results obtained for black holes using effective field theory methods applied to quantum gravity, in particular the unique effective action. Black holes are complex thermodynamical objects that not only have a…

高能物理 - 理论 · 物理学 2022-02-08 Xavier Calmet , Folkert Kuipers

Space and matter may both be manifestations of a single fundamental quantum dynamics, as it may become evident during black-hole evaporation. Inspired by the fact that quantum electrodynamics underlies the classical theory of elasticity,…

综合物理 · 物理学 2023-08-31 Alfredo Iorio , Luca Smaldone

The generalization of the black hole in three-dimensional spacetime to include an electric charge Q in addition to the mass M and the angular momentum J is given. The field equations are first solved explicitly when Q is small and the…

高能物理 - 理论 · 物理学 2009-10-31 Cristian Martinez , Claudio Teitelboim , Jorge Zanelli

Quantum gravity correction is truly important to study tunnelling process of black hole. Base on the generalized uncertainty principle, we investigate the influence of quantum gravity and the result tell us that the quantum gravity…

广义相对论与量子宇宙学 · 物理学 2015-06-19 Zhen-Yu liu , Ji-Rong Ren