Results 21 to 30 of about 4,617 (266)
An Improved Framework for Quantum Gravity
Universe, 2020 General relativity has two fundamental problems that render it unsuitable for tackling the gravitational field’s quantization. The first problem is the lack of a genuine gravitational variable representing gravitation only, inertial forces apart.
José G. Pereira, Diego F. López
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Testing Gravitational Theories in the Field of the Earth with the SaToR-G Experiment
Universe, 2021 A new satellite-based experiment in the field of gravitation, SaToR-G, is presented. It aims to compare the predictions of different theories of gravitation in the limit of weak-field and slow-motion.
David Lucchesi +8 more
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The Logic of Quantum Mechanics Derived from Classical General Relativity [PDF]
, 1997 For the first time it is shown that the logic of quantum mechanics can be derived from Classical Physics. An orthomodular lattice of propositions, characteristic of quantum logic, is constructed for manifolds in Einstein's theory of general relativity. A
Hadley, Mark J.
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On the Status of the Geodesic Principle in Newtonian and Relativistic Physics [PDF]
, 2011 A theorem due to Bob Geroch and Pong Soo Jang ["Motion of a Body in General Relativity." Journal of Mathematical Physics 16(1), (1975)] provides a sense in which the geodesic principle has the status of a theorem in General Relativity (GR).
Weatherall, James Owen +1 more
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General relativity as a fully singular Lagrange system
Results in Physics, 2020 Based on properties of six special gauge-fixing terms of tetrad, some coordinate conditions are presented, which lead to that all second time derivative terms of tetrad in Einstein equation are removed when general relativity is expressed by tetrad ...
Tao Mei
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A relativistic theory of the field II: Hamilton's principle and Bianchi's identities
Revista de Investigación de Física, 2021 As gravitation and electromagnetism are closely analogous long-range interactions, and the current formulation of gravitation is given in terms of geometry.
Mississippi Valenzuela
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The relativity of inertia and reality of nothing [PDF]
, 2008 The determination of inertia by matter is looked at in general relativity, where inertia can be represented by affine or projective structure. The matter tensor T seems to underdetermine affine structure by ten degrees of freedom, eight of which can be ...
Afriat, Alexander +4 more
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Bulk Viscous Bianchi Type VI0 Cosmological Model in the Self-creation Theory of Gravitation and in the General Theory of Relativity [PDF]
Iranian Journal of Astronomy and Astrophysics, 2019 In the second self-creation theory of gravitation and in the general theory of relativity, Bianchi type VI0 cosmological model in the presence of viscous fluid is studied.
E. A. Hegazy
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Physics Letters B, 2017 We study the beta functions of the quartic and Yukawa couplings of General Relativity and Unimodular Gravity coupled to the λϕ4 and Yukawa theories with masses.
S. Gonzalez-Martin, C.P. Martin
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Extended Theories of Gravitation
EPJ Web of Conferences, 2013 Extended theories of gravitation are naturally singled out by an analysis inspired by the Ehelers-Pirani-Schild framework. In this framework the structure of spacetime is described by a Weyl geometry which is enforced by dynamics.
Fatibene Lorenzo +3 more
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