Results 1 to 10 of about 1,185,467 (137)
A logic road from special relativity to general relativity [PDF]
Synthese Volume 186, Number 3 (2012), 633-649, 2010 We present a streamlined axiom system of special relativity in first-order logic. From this axiom system we "derive" an axiom system of general relativity in two natural steps. We will also see how the axioms of special relativity transform into those of general relativity.
A. Tarski +16 more
arxiv +3 more sources
Galaxies, 2014 A brief account of the present status of the recent nonlocal generalization of Einstein’s theory of gravitation is presented. The main physical assumptions that underlie this theory are described.
Bahram Mashhoon
doaj +4 more sources
Conformally Coupled General Relativity
Universe, 2018 The gravity model developed in the series of papers (Arbuzov et al. 2009; 2010), (Pervushin et al. 2012) is revisited. The model is based on the Ogievetsky theorem, which specifies the structure of the general coordinate transformation group. The theorem
Andrej Arbuzov, Boris Latosh
doaj +4 more sources
General relativity from causality
Journal of High Energy Physics, 2017 We study large families of theories of interacting spin 2 particles from the point of view of causality. Although it is often stated that there is a unique Lorentz invariant effective theory of massless spin 2, namely general relativity, other theories ...
Mark P. Hertzberg, McCullen Sandora
doaj +3 more sources
arXiv, 2013 Barbour's formulation of Mach's principle requires a theory of gravity to implement local relativity of clocks, local relativity of rods and spatial covariance. It turns out that relativity of clocks and rods are mutually exclusive. General Relativity implements local relativity of clocks and spatial covariance, but not local relativity of rods.
Koslowski, Tim
arxiv +3 more sources
General Relativity and Philosophy [PDF]
Journal of Philosophical Investigations, 2021 Is philosophy useful for physics? Many physicists and philosophers believe that it is; but there are those who challenge the usefulness of philosophy for science. Three major objections can be identified in their reasoning: 1.
Mohammad Ebrahim Maghsoudi +1 more
doaj +1 more source
European Physical Journal C: Particles and Fields, 2021 In the framework of the Einstein–Dirac-axion-aether theory we consider the quartet of self-interacting cosmic fields, which includes the dynamic aether, presented by the unit timelike vector field, the axionic dark mater, described by the pseudoscalar ...
Alexander B. Balakin, Anna O. Efremova
doaj +1 more source
Dynamic Aether as a Trigger for Spontaneous Spinorization in Early Universe
Universe, 2023 In the framework of the Einstein–Dirac-aether theory we consider a phenomenological model of the spontaneous growth of the fermion number, which is triggered by the dynamic aether.
Alexander Balakin, Anna Efremova
doaj +1 more source
European Physical Journal C: Particles and Fields, 2020 We consider the structure of halos of the axionic dark matter, which surround massive relativistic objects with static spherically symmetric gravitational field and monopole-type magneto-electric fields.
Alexander B. Balakin, Dmitry E. Groshev
doaj +1 more source
Numerical relativity simulation of GW150914 beyond general relativity [PDF]
, 2020 We produce the first astrophysically-relevant numerical binary black hole gravitational waveform in a higher-curvature theory of gravity beyond general relativity.
Moxon, Jordan +4 more
core +2 more sources