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Which Quantum Theory Must be Reconciled with Gravity? (And What Does it Mean for Black Holes?)

Universe, 2016
We consider the nature of quantum properties in non-relativistic quantum mechanics (QM) and relativistic quantum field theories, and examine the connection between formal quantization schemes and intuitive notions of wave-particle duality.
Matthew J. Lake
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Three-dimensional canonical quantum gravity [PDF]

Classical and Quantum Gravity, 1995
General aspects of vielbein representation, ADM formulation and canonical quantization of gravity are reviewed using pure gravity in three dimensions as a toy model. The classical part focusses on the role of observers in general relativity, which will later be identified with quantum observers.
openaire   +3 more sources

Constraining the loop quantum gravity parameter space from phenomenology

Physics Letters B, 2018
Development of quantum gravity theories rarely takes inputs from experimental physics. In this letter, we take a small step towards correcting this by establishing a paradigm for incorporating putative quantum corrections, arising from canonical quantum ...
Suddhasattwa Brahma, Michele Ronco
doaj   +1 more source

Modifications to gravitational wave equation from canonical quantum gravity

European Physical Journal C: Particles and Fields, 2020
It is expected that the quantum nature of spacetime leaves its imprint in all semiclassical gravitational systems, at least in certain regimes, including gravitational waves.
Andrea Dapor, Klaus Liegener
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Cauchy slice holography: a new AdS/CFT dictionary

Journal of High Energy Physics, 2023
We investigate a new approach to holography in asymptotically AdS spacetimes, in which time rather than space is the emergent dimension. By making a sufficiently large T 2-deformation of a Euclidean CFT, we define a holographic theory that lives on ...
Goncalo Araujo-Regado, Rifath Khan, Aron C. Wall   +2 more
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Quantum Uncertainties of Static Spherically Symmetric Spacetimes

Universe
We present a canonical quantization framework for static spherically symmetric spacetimes described by the Einstein–Hilbert action with a cosmological constant.
Benjamin Koch, Ali Riahinia
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Quantum Big-Bounce as a phenomenology of RQM in the Mini-superspace

Physics Letters B
We investigate the emergence of a quantum Big-Bounce in the context of an isotropic Universe, filled by a self-interacting scalar field, which plays the role of a physical clock. The bouncing cosmology is the result of a scattering process, driven by the
Simone Lo Franco, Giovanni Montani
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No fermion doubling in quantum geometry

Physics Letters B, 2015
In loop quantum gravity the discrete nature of quantum geometry acts as a natural regulator for matter theories. Studies of quantum field theory in quantum space–times in spherical symmetry in the canonical approach have shown that the main effect of the
Rodolfo Gambini, Jorge Pullin
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Quantum imploding scalar fields [PDF]

Royal Society Open Science, 2018
The d’Alembertian □ϕ = 0 has the solution ϕ = f(v)/r, where f is a function of a null coordinate v, and this allows creation of a divergent singularity out of nothing.
Mark D. Roberts
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Canonical quantum gravity on noncommutative space–time [PDF]

International Journal of Modern Physics A, 2015
In this paper canonical quantum gravity on noncommutative space–time is considered. The corresponding generalized classical theory is formulated by using the Moyal star product, which enables the representation of the field quantities depending on noncommuting coordinates by generalized quantities depending on usual coordinates.
openaire   +3 more sources