Results 41 to 50 of about 1,717,424 (325)

Lie-Poisson gauge theories and κ-Minkowski electrodynamics

open access: yesJournal of High Energy Physics, 2023
We consider gauge theories on Poisson manifolds emerging as semiclassical approximations of noncommutative spacetime with Lie algebra type noncommutativity.
V. G. Kupriyanov   +2 more
doaj   +1 more source

Symmetries of distributional domain wall geometries [PDF]

open access: yesJournal of Mathematical Physics, 2005
Generalizing the Lie derivative of smooth tensor fields to distribution-valued tensors, we examine the Killing symmetries and the collineations of the curvature tensors of some distributional domain wall geometries. The chosen geometries are rigorously the distributional thin wall limit of self-gravitating scalar field configurations representing thick
Pantoja, Nelson, Sanoja, Alberto
openaire   +2 more sources

Four-dimensional noncommutative deformations of U(1) gauge theory and L ∞ bootstrap.

open access: yesJournal of High Energy Physics, 2022
We construct a family of four-dimensional noncommutative deformations of U(1) gauge theory following a general scheme, recently proposed in JHEP 08 (2020) 041 for a class of coordinate-dependent noncommutative algebras.
Maxim Kurkov, Patrizia Vitale
doaj   +1 more source

Poisson gauge theory

open access: yesJournal of High Energy Physics, 2021
The Poisson gauge algebra is a semi-classical limit of complete non- commutative gauge algebra. In the present work we formulate the Poisson gauge theory which is a dynamical field theoretical model having the Poisson gauge algebra as a corresponding ...
Vladislav G. Kupriyanov
doaj   +1 more source

Symmetry and Symmetry Breaking in Physics: From Geometry to Topology [PDF]

open access: yesSymmetry, 2021
Symmetry (and group theory) is a fundamental principle of theoretical physics. Finite symmetries, continuous symmetries of compact groups, and infinite-dimensional representations of noncompact Lie groups are at the core of solid physics, particle physics, and quantum physics, respectively.
openaire   +1 more source

κ-Minkowski-deformation of U(1) gauge theory

open access: yesJournal of High Energy Physics, 2021
We construct a noncommutative kappa-Minkowski deformation of U(1) gauge theory, following a general approach, recently proposed in JHEP 08 (2020) 041.
V. G. Kupriyanov, M. Kurkov, P. Vitale
doaj   +1 more source

DISCRETE SYMMETRY, NONCOMMUTATIVE GEOMETRY AND GRAVITY [PDF]

open access: yesModern Physics Letters A, 1994
We consider gravity using the formalism of a differential Z2-graded algebra of 2 × 2 matrices whose elements are differential forms on space-time. The connection and the orthonormal frame are extended to incorporate additional scalar and vector fields. The extended torsion-free constraints are solved for a simple case. The resulting action describes a
openaire   +3 more sources

Near-horizon geometry and warped conformal symmetry [PDF]

open access: yes, 2015
A bstractWe provide boundary conditions for three-dimensional gravity including boosted Rindler spacetimes, representing the near-horizon geometry of non-extremal black holes or flat space cosmologies.
H. Afshar   +3 more
semanticscholar   +1 more source

Conformal symmetry and its breaking in two dimensional Nearly Anti-de-Sitter space [PDF]

open access: yes, 2016
We study a two dimensional dilaton gravity system, recently examined by Almheiri and Polchinski, which describes near extremal black holes, or more generally, nearly $AdS_2$ spacetimes.
J. Maldacena, D. Stanford, Zhenbin Yang
semanticscholar   +1 more source

GEOMETRY AND CRYSTAL SYMMETRY

open access: yesComputers & Mathematics with Applications, 1986
AbstractThe beautiful external forms of crystals are manifestations of their internal structures. These structures, which can be regarded as infinite periodic patterns, are determined by local forces. In this article we discuss symmetry from the “local” point of view.
openaire   +1 more source

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