Zobrazeno 1 - 10
of 5 116
pro vyhledávání: '"non-commutative"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-41 (2024)
Abstract We study a scalar field on a noncommutative model of spacetime, the fuzzy de Sitter space, which is based on the algebra of the de Sitter group SO(1, d) and its unitary irreducible representations. We solve the Klein-Gordon equation in d = 2
Externí odkaz:
https://doaj.org/article/d746dc396f144979b29be3ac286e6290
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-14 (2024)
Abstract We show that a system of particles on the lowest Landau level can be coupled to a probe U(1) gauge field A $$ \mathcal{A} $$ μ in such a way that the theory is invariant under a noncommutative U(1) gauge symmetry. While the temporal compone
Externí odkaz:
https://doaj.org/article/f3e4411f10af4ee79a1c7ae698697201
Autor:
Chengcheng Liu, Shahn Majid
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 7, Pp 1-27 (2024)
Abstract Using the framework of quantum Riemannian geometry, we show that gravity on the product of spacetime and a fuzzy sphere is equivalent under minimal assumptions to gravity on spacetime, an su 2-valued Yang-Mills field A μi and a real-symmetr
Externí odkaz:
https://doaj.org/article/fa05a87bd96d450386bebb8faa0cf98a
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 7, Pp 1-21 (2024)
Abstract We construct a gauge theory model on the 4-dimensional ρ-Minkowski space-time, a particular deformation of the Minkowski space-time recently considered. The corresponding star product results from a combination of Weyl quantization map and
Externí odkaz:
https://doaj.org/article/85c2cf0ef24c4a4f92fca4fe53b8745a
Publikováno v:
Nuclear Physics B, Vol 1008, Iss , Pp 116713- (2024)
The focus of this paper is to examine the properties of thermodynamics and weak gravitational lensing about the geometry of black holes within the context of a non-commutative Schwarzschild black hole surrounded by Perfect fluid dark matter. We exami
Externí odkaz:
https://doaj.org/article/0499bfd5cc7f4cea9739397f4e6ce962
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-32 (2024)
Abstract We use the framework of Hopf algebra and noncommutative differential geometry to build a noncommutative (NC) theory of gravity in a bottom-up approach. Noncommutativity is introduced via deformed Hopf algebra of diffeomorphisms by means of a
Externí odkaz:
https://doaj.org/article/40be7ce949c64238937810fa3f5c061d
Autor:
Masoud Khalkhali, Nathan Pagliaroli
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-28 (2024)
Abstract We compute the first twenty moments of three convergent quartic bi-tracial 2-matrix ensembles in the large N limit. These ensembles are toy models for Euclidean quantum gravity originally proposed by John Barrett and collaborators. A perturb
Externí odkaz:
https://doaj.org/article/59e29241af3440d5b04ac72c370b5bce
Autor:
Carlos Heredia, Josep Llosa
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-35 (2024)
Abstract This article focuses on three main contributions. Firstly, we provide an in-depth overview of the nonlocal Lagrangian formalism. Secondly, we introduce an extended version of the second Noether’s theorem tailored for nonlocal Lagrangians.
Externí odkaz:
https://doaj.org/article/39ae78521c974d799b025879de2432d2
Autor:
Schmitt, Philipp a, ⁎, Schötz, Matthias b, 1
Publikováno v:
In Journal of Algebra 15 March 2025 666:850-877
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 3, Pp 1-35 (2024)
Abstract We develop a geometric approach to Poisson electrodynamics, that is, the semi-classical limit of noncommutative U(1) gauge theory. Our framework is based on an integrating symplectic groupoid for the underlying Poisson brackets, which we int
Externí odkaz:
https://doaj.org/article/88eeaa6e244f4b13ab66ed64d140eeaa