Results 41 to 50 of about 1,717,424 (325)
Lie-Poisson gauge theories and κ-Minkowski electrodynamics
We consider gauge theories on Poisson manifolds emerging as semiclassical approximations of noncommutative spacetime with Lie algebra type noncommutativity.
V. G. Kupriyanov +2 more
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Symmetries of distributional domain wall geometries [PDF]
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
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Four-dimensional noncommutative deformations of U(1) gauge theory and L ∞ bootstrap.
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
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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
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Symmetry and Symmetry Breaking in Physics: From Geometry to Topology [PDF]
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.
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κ-Minkowski-deformation of U(1) gauge theory
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
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DISCRETE SYMMETRY, NONCOMMUTATIVE GEOMETRY AND GRAVITY [PDF]
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
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Near-horizon geometry and warped conformal symmetry [PDF]
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]
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
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.
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