Results 21 to 30 of about 18,697,974 (254)
Journal of High Energy Physics, 2019 We classify N =1 d = 4 kinematical and aristotelian Lie superalgebras with spa- tial isotropy, but not necessarily parity nor time-reversal invariance. Employing a quater- nionic formalism which makes rotational covariance manifest and simplifies many of
José Figueroa-O’Farrill, Ross Grassie
doaj +1 more source
Journal of High Energy Physics, 2021 We investigate the asymptotic symmetry group of a scalar field minimally-coupled to an abelian gauge field using the Hamiltonian formulation. This extends previous work by Henneaux and Troessaert on the pure electromagnetic case.
Roberto Tanzi, Domenico Giulini
doaj +1 more source
International Journal of Modern Physics D, 2016 The equations of Hamiltonian gravity are often considered ugly cousins of the elegant and manifestly covariant versions found in the Lagrangian theory. However, both formulations are fundamental in their own rights because they make different statements about the nature of spacetime and its symmetries.
openaire +2 more sources
A note on the asymptotic symmetries of electromagnetism
Journal of High Energy Physics, 2023 We extend the asymptotic symmetries of electromagnetism in order to consistently include angle-dependent u(1) gauge transformations ϵ that involve terms growing at spatial infinity linearly and logarithmically in r, ϵ ~ a(θ, φ)r + b(θ, φ) ln r + c(θ, φ).
Oscar Fuentealba +2 more
doaj +1 more source
Asymptotic symmetries of electromagnetism at spatial infinity
Journal of High Energy Physics, 2018 We analyse the asymptotic symmetries of Maxwell theory at spatial infinity through the Hamiltonian formalism. Precise, consistent boundary conditions are explicitly given and shown to be invariant under asymptotic angle-dependent u(1)-gauge ...
Marc Henneaux, Cédric Troessaert
doaj +1 more source
Residual gauge symmetry in light-cone electromagnetism
Journal of High Energy Physics, 2023 We analyze the residual gauge freedom in light-cone electromagnetism in four dimensions. The standard boundary conditions involved in the so-called lc 2 formalism, which contains only the two physical degrees of freedom, allow for a subset of residual ...
Sucheta Majumdar
doaj +1 more source
COLORED SYMMETRIES IN SPACE–TIME
Computers & Mathematics with Applications, 1986 AbstractThe paper displays a single objective: to show the emergence of symmetries as a universal, archetypal, self-organizing phenomenon which originates in an infinite number of forms all having the same trihedral innate structure. These forms have been generated by the use of a single-type, right-handed element containing three spatial dimensions ...
openaire +1 more source
Multipole charge conservation and implications on electromagnetic radiation
Journal of High Energy Physics, 2017 It is shown that conserved charges associated with a specific subclass of gauge symmetries of Maxwell electrodynamics are proportional to the well known electric mul-tipole moments.
Ali Seraj
doaj +1 more source
Discrete Lorentz symmetry and discrete time translational symmetry
New Journal of Physics, 2018 The Lorentz symmetry and the space and time translational symmetry are fundamental symmetries of nature. Crystals are the manifestation of the continuous space translational symmetry being spontaneously broken into a discrete one.
Pei Wang
doaj +1 more source
Discrete Space-Time and Lorentz Symmetry [PDF]
International Journal of Theoretical Physics, 2004 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources