Results 31 to 40 of about 2,770,909 (169)

Theory and phenomenology of relativistic corrections to the Heisenberg principle [PDF]

open access: yesarXiv, 2022
The Heisenberg position-momentum uncertainty principle shares with the equivalence principle the role of main pillar of our current description of nature. However, in its original formulation it is inconsistent with special relativity, and in nearly a century of investigation not much progress has been made toward a satisfactory reformulation.
arxiv  

About Locality and the Relativity Principle Beyond Special Relativity [PDF]

open access: yesPhys. Rev. D 84, 085010 (2011), 2011
Locality of interactions is an essential ingredient of Special Relativity. Recently, a new framework under the name of relative locality \cite{AmelinoCamelia:2011bm} has been proposed as a way to consider Planckian modifications of the relativistic dynamics of particles.
arxiv   +1 more source

Application of the Campbell-Magaard theorem to higher-dimensional physics

open access: yes, 2003
Stated succinctly, the original version of the Campbell-Magaard theorem says that it is always possible to locally embed any solution of 4-dimensional general relativity in a 5-dimensional Ricci-flat manifold.
Seahra, Sanjeev S., Wesson, Paul S.
core   +1 more source

The Physical Role of Gravitational and Gauge Degrees of Freedom in General Relativity - II: Dirac versus Bergmann observables and the Objectivity of Space-Time [PDF]

open access: yes, 2004
(abridged)The achievements of the present work include: a) A clarification of the multiple definition given by Bergmann of the concept of {\it (Bergmann) observable.
A. Komar   +27 more
core   +2 more sources

Spacetime, General Covariance, Dirac-Bergmann Observables and Non-Inertial Frames

open access: yes, 2002
Talk at the 25th Johns Hopkins Workshop "2001: A Relativistic Spacetime Odyssey", Firenze September 2001.Comment: 23 ...
Lusanna, Luca
core   +2 more sources

First-Order Logic Foundation of Relativity Theories [PDF]

open access: yes, 2006
Motivation and perspective for an exciting new research direction interconnecting logic, spacetime theory, relativity--including such revolutionary areas as black hole physics, relativistic computers, new cosmology--are presented in this paper.
Madarasz, Judit X.   +2 more
core   +6 more sources

Deformed General Relativity [PDF]

open access: yesPhys. Rev. D 87 (2013) 044044, 2012
Deformed special relativity is embedded in deformed general relativity using the methods of canonical relativity and loop quantum gravity. Phase-space dependent deformations of symmetry algebras then appear, which in some regimes can be rewritten as non-linear Poincare algebras with momentum-dependent deformations of commutators between boosts and time
arxiv   +1 more source

Special Relativity: Scientific or Philosophical Theory?

open access: yes, 2016
In this article, we argue that the theory of special relativity, as formulated by Einstein, is a philosophical rather than a scientific theory. What is scientific and experimentally supported is the formalism of the relativistic mechanics embedded in the
Sochi, Taha
core   +2 more sources

Experimental Tests of General Relativity

open access: yes, 2008
Einstein's general theory of relativity is the standard theory of gravity, especially where the needs of astronomy, astrophysics, cosmology and fundamental physics are concerned.
Anderson JD   +12 more
core   +1 more source

Passage of Time in a Planck Scale Rooted Local Inertial Structure [PDF]

open access: yes, 2003
It is argued that the `problem of time' in quantum gravity necessitates a refinement of the local inertial structure of the world, demanding a replacement of the usual Minkowski line element by a 4+2n dimensional pseudo-Euclidean line element, with the ...
Aharonian F.   +19 more
core   +2 more sources

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