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A DIALOG ON QUANTUM GRAVITY [PDF]
International Journal of Modern Physics D, 2003 The debate between loop quantum gravity and string theory is sometime lively, and it is hard to present an impartial view on the issue. Leaving any attempt to impartiality aside, I report here, instead, a conversation on this issue, overheard in the cafeteria of a Major American University.
Carlo Rovelli, Carlo Rovelli
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On the relation between Euclidean and Lorentzian 2D quantum gravity [PDF]
, 1999 Starting from 2D Euclidean quantum gravity, we show that one recovers 2D Lorentzian quantum gravity by removing all baby universes. Using a peeling procedure to decompose the discrete, triangulated geometries along a one-dimensional path, we explicitly ...
Ambjørn +8 more
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Quasicrystal Tilings in Three Dimensions and Their Empires
Crystals, 2018 The projection method for constructing quasiperiodic tilings from a higher dimensional lattice provides a useful context for computing a quasicrystal’s vertex configurations, frequencies, and empires (forced tiles).
Dugan Hammock, Fang Fang, Klee Irwin
doaj +1 more source
The quantum gravity dynamics of near extremal black holes [PDF]
Journal of High Energy Physics, 2018 We study the quantum effects of Near-Extremal black holes near their horizons. The gravitational dynamics in such backgrounds are closely connected to a particle in AdS2 with constant electric field. We use this picture to solve the theory exactly.
Zhenbin Yang
semanticscholar +1 more source
Physics Letters B, 2013 6 pages, 2 figures, version to appear in ...
Henz, T. +3 more
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Search for Quantum Gravity [PDF]
General Relativity and Gravitation, 1999 7 pages LATEX, no figures, Awarded First Prize in the Gravity Research Foundation Essay Competition for ...
Ellis, J +2 more
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Emergence of string-like physics from Lorentz invariance in loop quantum gravity [PDF]
, 2014 We consider a quantum field theory on a spherically symmetric quantum space time described by loop quantum gravity. The spin network description of space time in such a theory leads to equations for the quantum field that are discrete.
Gambini, Rodolfo, Pullin, Jorge
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Remarks on fermions in a dipole magnetic field
Journal of High Energy Physics, 2021 This work is a continuation of our recent study of non-relativistic charged particles, confined to a sphere enclosing a magnetic dipole at its center [1]. In this sequel, we extend our computations in two significant ways.
Jeff Murugan +2 more
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The causal set approach to quantum gravity [PDF]
Living Reviews in Relativity, 2019 The causal set theory (CST) approach to quantum gravity postulates that at the most fundamental level, spacetime is discrete, with the spacetime continuum replaced by locally finite posets or “causal sets”.
S. Surya
semanticscholar +1 more source
Quantum state correction of relic gravitons from quantum gravity [PDF]
, 1996 The semiclassical approach to quantum gravity would yield the Schroedinger formalism for the wave function of metric perturbations or gravitons plus quantum gravity correcting terms in pure gravity; thus, in the inflationary scenario, we should expect ...
B. Allen +11 more
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