Results 11 to 20 of about 1,567,571 (289)
Journal of High Energy Physics, 2021 Abstract We assume that the points in volumes smaller than an elementary volume (which may have a Planck size) are indistinguishable in any physical experiment. This naturally leads to a picture of a discrete space with a finite number of degrees of freedom per elementary volume.
Ali H. Chamseddine, Viatcheslav Mukhanov
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Classical and Quantum Gravity, 2004 Version to be published in Classical and Quantum ...
Magueijo, João, Smolin, Lee
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Einstein gravity, massive gravity, multi-gravity and nonlinear realizations [PDF]
Journal of High Energy Physics, 2015 35 pages.
Garrett Goon +3 more
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Multimetric gravity via massive gravity [PDF]
Physical Review D, 2012 10 pages, references added and typos ...
Khosravi, Nima +3 more
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Physical Review D, 2006 We consider the possibility of energy being exchanged between the scalar and matter fields in scalar-tensor theories of gravity. Such an exchange provides a new mechanism which can drive variations in the gravitational 'constant' G. We find exact solutions for the evolution of spatially flat Friedman-Roberston-Walker cosmologies in this scenario and ...
Clifton, T, Barrow, JD
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Physics Letters B, 2003 A unified description of all interactions could be based on a higher-dimensional theory involving only spinor fields. The metric arises as a composite object and the gravitational field equations contain torsion-corrections as compared to Einstein gravity.
Hebecker, A., Wetterich, C.
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Liouville Gravity from Einstein Gravity [PDF]
, 2009 We show that Liouville gravity arises as the limit of pure Einstein gravity in 2+epsilon dimensions as epsilon goes to zero, provided Newton's constant scales with epsilon. Our procedure - spherical reduction, dualization, limit, dualizing back - passes several consistency tests: geometric properties, interactions with matter and the Bekenstein-Hawking
Grumiller, D., Jackiw, R.
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The Self-Simulation Hypothesis Interpretation of Quantum Mechanics
Entropy, 2020 We modify the simulation hypothesis to a self-simulation hypothesis, where the physical universe, as a strange loop, is a mental self-simulation that might exist as one of a broad class of possible code theoretic quantum gravity models of reality obeying
Klee Irwin +2 more
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地球与行星物理论评, 2022 Temporal gravity field comprehensively reflects the migration characteristics of the earth's inner and shallow mass variations, which has been widely used in various geoscience applications.
Hao Zhou +7 more
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Dixon-Rosenfeld lines and the Standard Model
European Physical Journal C: Particles and Fields, 2023 We present three new coset manifolds named Dixon-Rosenfeld lines that are similar to Rosenfeld projective lines except over the Dixon algebra $$\mathbb {C}\otimes \mathbb {H}\otimes \mathbb {O}$$ C ⊗ H ⊗ O .
David Chester +4 more
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