Results 31 to 40 of about 219,185 (273)
Discrete space-time symmetries [PDF]
Czechoslovak Journal of Physics, 1993 Symmetries have always fascinated human beings; they are found in nature, art, and architecture. Physicists, like other scientists have often used symmetries as a basis of their understanding of nature. When the dynamics is unknown, symmetries serve to delineate and define it. When the dynamics is known, symmetries are used to study structure.
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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
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Symmetries of String Effective Action and Space-Time Geometry [PDF]
, 1992 Two dimensional charged black hole solution is obtained by implementing an $O(2,2)$ transformation on the three dimensional black string solution. Two different monopole backgrounds in five dimensions are related through an $O(2,2)$ transformation.
Khastgir, S. Pratik, Maharana, Jnanadeva
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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
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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
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Modular Hamiltonian for de Sitter diamonds
Journal of High Energy Physics, 2023 We determine the Tomita-Takesaki modular data for CFTs in double cone and light cone regions in conformally flat spacetimes. This includes in particular the modular Hamiltonian for diamonds in the de Sitter spacetime.
Markus B. Fröb
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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
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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
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UV completion without symmetry restoration
, 2013 We show that it is not possible to UV-complete certain low-energy effective theories with spontaneously broken space-time symmetries by embedding them into linear sigma models, that is, by adding "radial" modes and restoring the broken symmetries.
Endlich, Solomon +2 more
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Discrete Space-Time and Lorentz Symmetry [PDF]
International Journal of Theoretical Physics, 2004 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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