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A five-dimensional classical framework for gravitational and quantum phenomena [PDF]
Scientific ReportsConventional attempts to unify quantum theory with general relativity by quantizing gravity face persistent challenges, suggesting the need for a deeper framework.
Filip Strubbe
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Quantum signatures in nonlinear gravitational waves [PDF]
Quantum, 2022 The effective quantum field theory description of gravity, despite its non-renormalizability, allows for predictions beyond classical general relativity.
Thiago Guerreiro +4 more
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The Formalism of Milky-Way Antimatter-Domains Evolution
Galaxies, 2023 If baryosynthesis is strongly nonhomogeneous, macroscopic regions with antibaryon excess can be created in the same process from which the baryonic matter is originated. This exotic possibility can become real, if the hints to the existence of antihelium
Maxim Yu. Khlopov, Orchidea Maria Lecian
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The sub-leading scattering waveform from amplitudes
Journal of High Energy Physics, 2023 We compute the next-to-leading order term in the scattering waveform of uncharged black holes in classical general relativity and of half-BPS black holes in N $$ \mathcal{N} $$ = 8 supergravity.
Aidan Herderschee, Radu Roiban, Fei Teng
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Generalized Uncertainty Principle, Classical Mechanics, and General Relativity
Physics Letters B, 2020 The Generalized Uncertainty Principle (GUP) has been directly applied to the motion of (macroscopic) test bodies on a given space-time in order to compute corrections to the classical orbits predicted in Newtonian Mechanics or General Relativity.
Roberto Casadio, Fabio Scardigli
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A Postquantum Theory of Classical Gravity?
Physical Review X, 2023 The effort to discover a quantum theory of gravity is motivated by the need to reconcile the incompatibility between quantum theory and general relativity.
Jonathan Oppenheim
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Planck length in classical and quantum Hamiltonian formulations of general relativity
European Physical Journal C: Particles and Fields, 2023 The physical meaning of the Planck length ( $$\ell _{P}$$ ℓ P ) is investigated in the framework of the unconstrained synchronous variational formulation of classical general relativity (GR).
Claudio Cremaschini
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The Possibility of a Non-Lagrangian Theory of Gravity
Universe, 2021 General Relativity resembles a very elegant crystal glass: If we touch its principles, that is, its Lagrangian, there is a risk of breaking everything. Or, if we will, it is like a short blanket: Curing some problems creates new problems.
Celia Escamilla-Rivera, Júlio C. Fabris
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A tale of analogies: a review on gravitomagnetic effects, rotating sources, observers and all that
Journal of Physics Communications, 2023 Gravitoelectromagnetic analogies are somewhat ubiquitous in General Relativity, and they are often used to explain peculiar effects of Einstein’s theory of gravity in terms of familiar results from classical electromagnetism.
Matteo Luca Ruggiero, Davide Astesiano
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Galaxies, 2014 By phenomenologically assuming a slow temporal variation of the percent acceleration rate S̈S -1 of the cosmic scale factor S(t), it is shown that the orbit of a local binary undergoes a secular expansion.
Lorenzo Iorio
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