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Generalizations of Snyder model to curved spaces

open access: yesPhysics Letters B, 2022
We consider generalizations of the Snyder algebra to a curved spacetime background with de Sitter symmetry. As special cases, we obtain the algebras of the Yang model and of triply special relativity.
S. Meljanac, S. Mignemi
doaj   +1 more source

An alternative way to present a relativistic Lagrangian definition

open access: yesRevista Brasileira de Ensino de Física, 2021
As long we known, the non-relativistic Lagrangian definition, L = T − U with T and U as being, respectively, kinetic and potential energy, it is not valid at the relativistic level.
M.A. De Andrade, C. Neves
doaj   +1 more source

Doubly Special Relativity [PDF]

open access: yes, 2002
I give a short non-technical review of the results obtained in recent work on "Doubly Special Relativity", the relativistic theories in which the rotation/boost transformations between inertial observers are characterized by two observer-independent ...
Amelino-Camelia, Giovanni
core   +2 more sources

Physics of Deformed Special Relativity: Relativity Principle revisited [PDF]

open access: yes, 2004
In many different ways, Deformed Special Relativity (DSR) has been argued to provide an effective limit of quantum gravity in almost-flat regime. Some experiments will soon be able to test some low energy effects of quantum gravity, and DSR is a very ...
Girelli, Florian, Livine, Etera R.
core   +7 more sources

Symmetry and Special Relativity [PDF]

open access: yesSymmetry, 2019
We explore the role of symmetry in the theory of Special Relativity. Using the symmetry of the principle of relativity and eliminating the Galilean transformations, we obtain a universally preserved speed and an invariant metric, without assuming the constancy of the speed of light.
Yaakov Friedman, Tzvi Scarr
openaire   +1 more source

Correcting the Doppler Effect

open access: yesScience & Philosophy, 2023
Christian Doppler, an Austrian physicist, described in 1842 the apparent change in frequency of a wave when motion of the source or the observer is involved. Named after him, this change in observational frequencies is known as the Doppler Effect.
Denis Thomas
doaj   +1 more source

Homogeneously Modified Special relativity (HMSR)

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
This work explores a Standard Model extension possibility, that violates Lorentz invariance, preserving the space-time isotropy and homogeneity. In this sense HMSR represents an attempt to introduce an isotropic Lorentz Invariance Violation in the ...
Marco Danilo Claudio Torri   +2 more
doaj   +1 more source

Clocks without “Time” in Entangled-State Experiments

open access: yesEntropy, 2020
Entangled states of light exhibit measurable correlations between light detections at separated locations. These correlations are exploited in entangled-state quantum key distribution.
F. Hadi Madjid, John M. Myers
doaj   +1 more source

A New Perspective on Doubly Special Relativity

open access: yesUniverse, 2023
Doubly special relativity considers a deformation of the special relativistic kinematics parametrized by a high-energy scale, in such a way that it preserves a relativity principle.
J. M. Carmona   +3 more
doaj   +1 more source

Some comments on the universal constant in DSR [PDF]

open access: yes, 2006
Deformed Special Relativity is usually presented as a deformation of Special Relativity accommodating a new universal constant, the Planck mass, while respecting the relativity principle. In order to avoid some fundamental problems (e.g.
Aloisio R   +11 more
core   +3 more sources

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