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Twisted geometries coherent states for loop quantum gravity [PDF]
Classical and quantum gravity, 2020 We introduce a new family of coherent states for loop quantum gravity, inspired by the twisted geometry parametrization. We compute their peakedness properties and compare them with the heat-kernel coherent states. They show similar features for the area
Andrea Calcinari +3 more
semanticscholar +1 more source
Quantum Reduced Loop Gravity [PDF]
Proceedings of Frontiers of Fundamental Physics 14 — PoS(FFP14), 2016 Quantum Reduced Loop Gravity provides a promising framework for a consistent characterization of the early Universe dynamics. Inspired by BKL conjecture, a flat Universe is described as a collection of Bianchi I homogeneous patches. The resulting quantum dynamics is described by the scalar constraint operator, whose matrix elements can be analytically ...
ALESCI, Emanuele, Cianfrani, F.
openaire +4 more sources
Casimir effect in a quantum space-time [PDF]
, 2014 We apply quantum field theory in quantum space-time techniques to study the Casimir effect for large spherical shells. As background we use the recently constructed exact quantum solution for spherically symmetric vacuum space-time in loop quantum ...
Gambini, Rodolfo +2 more
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Primordial regular black holes as all the dark matter. II. Non-time-radial-symmetric and loop quantum gravity-inspired metrics [PDF]
Physical Review DIt is a common belief that a theory of quantum gravity should ultimately cure curvature singularities which are inevitable within General Relativity, and plague for instance the Schwarzschild and Kerr metrics, usually considered as prototypes for ...
Marco Calzà +2 more
semanticscholar +1 more source
Testing the Master Constraint Programme for Loop Quantum Gravity V. Interacting Field Theories [PDF]
, 2004 This is the final fifth paper in our series of five in which we test the Master Constraint Programme for solving the Hamiltonian constraint in Loop Quantum Gravity.
Ashtekar A +43 more
core +1 more source
Loop Quantum Gravity and Observations [PDF]
, 2017 Quantum gravity has long been thought to be completely decoupled from experiments or observations. Although it is true that smoking guns are still missing, there are now serious hopes that quantum gravity phenomena might be tested. We review here some possible ways to observe loop quantum gravity effects either in the framework of cosmology or in ...
Barrau, A., Grain, J.
openaire +3 more sources
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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Astronomische Nachrichten, 2011 AbstractIn this talk, I give a short general introduction to Loop Quantum Gravity (LQG), beginning with some motivations for quantizing General Relativity, listing various attempts and then focusing on the case of LQG. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
openaire +3 more sources
Prelude to Simulations of Loop Quantum Gravity on Adiabatic Quantum Computers
Frontiers in Astronomy and Space Sciences, 2021 The article addresses the possibility of implementing spin network states, used in the loop quantum gravity approach to Planck scale physics on an adiabatic quantum computer.
Jakub Mielczarek
doaj +1 more source
Loop Quantum Gravity and Quantum Information
, 2023 We summarize recent developments at the interface of quantum gravity and quantum information, and discuss applications to the quantum geometry of space in loop quantum gravity. In particular, we describe the notions of link entanglement, intertwiner entanglement, and boundary spin entanglement in a spin-network state.
Bianchi, Eugenio, Livine, Etera R.
openaire +3 more sources