A Lorentz variant theory that passes fundamental tests of special relativity and makes diverging, testable but as of yet untested predictions [version 2; peer review: 2 approved] [PDF]
F1000Research, 2023 Background Tests of special relativity have been conducted over the past century with increasing accuracy and none have showed violations of Lorentz invariance.
Daniël Bischoff van Heemskerck
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Universe, 2020 Gravity can be formulated as a gauge theory by combining symmetry principles and geometrical methods in a consistent mathematical framework. The gauge approach to gravity leads directly to non-Euclidean, post-Riemannian spacetime geometries, providing ...
Francisco Cabral +2 more
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Testing fundamental physics with photon frequency shift
European Physical Journal C: Particles and Fields, 2020 We propose a high precision satellite experiment to further test Einstein’s General Relativity and constrain extended theories of gravity. We consider the frequency shift of a photon radially exchanged between two observers located on Earth and on a ...
Luca Buoninfante +2 more
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A naturally regularized path integral formalism
European Physical Journal C: Particles and Fields, 2019 A minimal uncertainty in position measurement comes into play if, for instance, one incorporates gravitational interaction of photon and electron in the Heisenberg’s Electron Microscope Gedanken Experiment.
Kourosh Nozari +3 more
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Foundations of Quantum Gravity : The Role of Principles Grounded in Empirical Reality [PDF]
, 2014 When attempting to assess the strengths and weaknesses of various principles in their potential role of guiding the formulation of a theory of quantum gravity, it is crucial to distinguish between principles which are strongly supported by empirical data
Holman, M.
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Thomas-Fermi Model in the Presence of Natural Cutoffs
Advances in High Energy Physics, 2014 It has been revealed, in the context of quantum gravity candidates, that measurement of position cannot be done with arbitrary precision and there is a finite resolution of space-time points.
Kourosh Nozari, Z. Haghani, J. Vahedi
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Causality and the speed of sound [PDF]
, 2007 A usual causal requirement on a viable theory of matter is that the speed of sound be at most the speed of light. In view of various recent papers querying this limit, the question is revisited here.
A. Ranfagni +17 more
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The Physical Role of Gravitational and Gauge Degrees of Freedom in General Relativity - I: Dynamical Synchronization and Generalized Inertial Effects [PDF]
, 2004 This is the first of a couple of papers in which, by exploiting the capabilities of the Hamiltonian approach to general relativity, we get a number of technical achievements that are instrumental both for a disclosure of \emph{new} results concerning ...
Lusanna, L., Pauri, M.
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Relativistic Astronomy. III. Test of Special Relativity via Doppler Effect
, 2019 The Breakthrough Starshot program is planning to send transrelativistic probes to travel to nearby stellar systems within decades. Because the probe velocity is designed to be a good fraction of the light speed, Zhang & Li recently proposed that these ...
Yang, Yuan-Pei +2 more
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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
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