Results 181 to 190 of about 2,347,924 (407)
Minimal and maximal lengths of quantum gravity from non-hermitian position-dependent noncommutativity. [PDF]
Sci Rep, 2022 Lawson LM.
europepmc +1 more source
Spin foam models with finite groups
, 2011 Spin foam models, loop quantum gravity and group field theory are discussed as quantum gravity candidate theories and usually involve a continuous Lie group.
Bahr, Benjamin +2 more
core
Comment on "Inconsistencies in Verlinde's emergent gravity" [PDF]
arXiv, 2020 In 2016, Erik Verlinde proposed a new theory of gravity called "emergent gravity" by using mathematical formulas used in the theory of elasticity. In 2017, De-Chang Dai and Dejan Stojkovic claimed to point out inconsistencies in Verlinde's emergent gravity.
arxiv
A parametrix for quantum gravity? [PDF]
International Journal of Geometric Methods in Modern Physics, 2016 In the 60s, DeWitt discovered that the advanced and retarded Green functions of the wave operator on metric perturbations in the de Donder gauge make it possible to define classical Poisson brackets on the space of functionals that are invariant under the action of the full diffeomorphism group of spacetime. He therefore tried to exploit this property
openaire +4 more sources
Photocatalytic and Electrochemical Synthesis of Biofuel via Efficient Valorization of Biomass
Advanced Energy Materials, EarlyView.This review highlights biomass and biofuel traits, exploring photocatalysis and electrocatalysis mechanisms and their synergistic technologies in biofuel production. It analyzes environmental and economic impacts of green catalytic processes, assesses current challenges, and outlines future research directions, condensing complex topics into a focused ...
Dalin Sun +9 more
wiley +1 more source
A study of the SYK2 model with twisted boundary conditions
Journal of High Energy PhysicsWe study a version of the 2-body Sachdev-Ye-Kitaev (SYK2) model whose complex fermions exhibit twisted boundary conditions on the thermal circle. As we show, this is physically equivalent to coupling the fermions to a 1-dimensional external gauge field A(
Jeff Murugan +2 more
doaj +1 more source
Expectation values of coherent states for SU(2) Lattice Gauge Theories
Journal of High Energy Physics, 2020 This article investigates properties of semiclassical Gauge Field Theory Coherent States for general quantum gauge theories. Useful, e.g., for the canonical formulation of Lattice Gauge Theories these states are labelled by a point in the classical phase
Klaus Liegener +1 more
doaj +1 more source
Statistical description of ideal gas at Planck scale with strong quantum gravity measurement. [PDF]
Heliyon, 2022 Lawson LM.
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BARRIERS IN QUANTUM GRAVITY [PDF]
, 1994 I discuss recent progress in our understanding of two barriers in quantum gravity: $c > 1$ in the case of 2d quantum gravity and $D > 2$ in the case of Euclidean Einstein-Hilbert gravity formulated in space-time dimensions $D >2$.
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Towards a Theory of Quantum Gravity from Neural Networks. [PDF]
Entropy (Basel), 2021 Vanchurin V.
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