Results 1 to 10 of about 2,312,223 (403)
Realization of a complete Stern-Gerlach interferometer: Toward a test of quantum gravity. [PDF]
Sci Adv, 2021 A full-loop Stern-Gerlach atom interferometer is realized, opening perspectives to examine the quantum nature of gravity. The Stern-Gerlach effect, found a century ago, has become a paradigm of quantum mechanics.
Margalit Y +10 more
europepmc +3 more sources
Bohmian quantum gravity and cosmology [PDF]
Applied Bohmian Mechanics, 2019 Quantum gravity aims to describe gravity in quantum mechanical terms. How exactly this needs to be done remains an open question. Various proposals have been put on the table, such as canonical quantum gravity, loop quantum gravity, string theory, etc ...
Pinto-Neto, Nelson, Struyve, Ward
core +2 more sources
Quantum Gravity: Has Spacetime Quantum Properties? [PDF]
arXiv, 2009 The incompatibility between GR and QM is generally seen as a sufficient motivation for the development of a theory of Quantum Gravity. If - so a typical argumentation - QM gives a universally valid basis for the description of all natural systems, then the gravitational field should have quantum properties.
Hedrich, Reiner
arxiv +4 more sources
Lattice Quantum Gravity from Stochastic 3-Geometries
, 1995 I propose the Langevin equation for 3-geometries in the Ashtekar's formalism to describe 4D Euclidean quantum gravity, in the sense that the corresponding Fokker-Planck hamiltonian recovers the hamiltonian in 4D quantum gravity exactly.
Nakazawa, N.
core +4 more sources
A short review of loop quantum gravity [PDF]
Reports on progress in physics. Physical Society, 2021 An outstanding open issue in our quest for physics beyond Einstein is the unification of general relativity (GR) and quantum physics. Loop quantum gravity (LQG) is a leading approach toward this goal.
A. Ashtekar, Eugenio Bianchi
semanticscholar +1 more source
Quantum Gravity in 30 Questions [PDF]
Proceedings of Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2021), 2022 Quantum gravity is the missing piece in our understanding of the fundamental interactions today. Given recent observational breakthroughs in gravity, providing a quantum theory for what lies beyond general relativity is more urgent than ever.
R. Loll +3 more
semanticscholar +1 more source
Exploiting Anyonic Behavior of Quasicrystals for Topological Quantum Computing
Symmetry, 2022 The concrete realization of topological quantum computing using low-dimensional quasiparticles, known as anyons, remains one of the important challenges of quantum computing. A topological quantum computing platform promises to deliver more robust qubits
Marcelo Amaral +3 more
doaj +1 more source
Spherically symmetric loop quantum gravity: analysis of improved dynamics [PDF]
Classical and quantum gravity, 2020 We study the ‘improved dynamics’ for the treatment of spherically symmetric space-times in loop quantum gravity introduced by Chiou et al in analogy with the one that has been constructed by Ashtekar, Pawlowski and Singh for the homogeneous space-times ...
R. Gambini, J. Olmedo, J. Pullin
semanticscholar +1 more source
Black hole collapse and bounce in effective loop quantum gravity [PDF]
Classical and quantum gravity, 2020 We derive effective equations with loop quantum gravity corrections for the Lemaître–Tolman–Bondi family of space-times, and use these to study quantum gravity effects in the Oppenheimer–Snyder collapse model.
Jarod George Kelly +2 more
semanticscholar +1 more source
Quantum Gravity: A Fluctuating Point of View [PDF]
Frontiers of Physics, 2020 In this contribution, we discuss the asymptotic safety scenario for quantum gravity with a functional renormalization group approach that disentangles dynamical metric fluctuations from the background metric.
J. Pawlowski, M. Reichert
semanticscholar +1 more source