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On quantum gravity and quantum gravity phenomenology [PDF]
The Sixteenth Marcel Grossmann Meeting, 2021 This article summarizes a new approach to quantum gravity based on the concepts of modular spacetime, Born geometry, and metastring theory and their applications to quantum gravity phenomenology.
D. Edmonds, D. Minic, T. Takeuchi
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Realization of a complete Stern-Gerlach interferometer: Toward a test of quantum gravity [PDF]
Sci Adv, 2020 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.
Y. Margalit +10 more
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Locally Mediated Entanglement in Linearized Quantum Gravity. [PDF]
Physical Review Letters, 2022 The current interest in laboratory detection of entanglement mediated by gravity was sparked by an information-theoretic argument: entanglement mediated by a local field certifies that the field is not classical.
Marios Christodoulou +5 more
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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
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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
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Solvable models of quantum black holes: a review on Jackiw–Teitelboim gravity [PDF]
Living Reviews in Relativity, 2022 We review recent developments in Jackiw–Teitelboim gravity. This is a simple solvable model of quantum gravity in two dimensions (that arises e.g. from the s-wave sector of higher dimensional gravity systems with spherical symmetry).
T. Mertens, G. Turiaci
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Classical and quantum gravity with fractional operators [PDF]
Classical and quantum gravity, 2021 Following the same steps made for a scalar field in a parallel publication, we propose a class of perturbative theories of quantum gravity based on fractional operators, where the kinetic operator of the graviton is made of either fractional derivatives ...
G. Calcagni
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Quantum Gravity in the Lab. II. Teleportation by Size and Traversable Wormholes [PDF]
PRX Quantum, 2021 In [1] we discussed how quantum gravity may be simulated using quantum devices and gave a specific proposal -- teleportation by size and the phenomenon of size-winding.
Sepehr Nezami +8 more
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Gravity entanglement, quantum reference systems, degrees of freedom [PDF]
Classical and quantum gravity, 2022 Gravity mediated entanglement (GME) has been proposed as the first experimentally testable signature of quantum gravity. However, to what extent the effect is due to quantum gravity is under debate.
Marios Christodoulou +3 more
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