Results 31 to 40 of about 391 (182)

Noncommutative geometry as a regulator [PDF]

open access: yesPhysical Review D, 2000
We give a perturbative quantization of space-time $R^4$ in the case where the commutators $C^{μν}=[X^μ,X^ν]$ of the underlying algebra generators are not central . We argue that this kind of quantum space-times can be used as regulators for quantum field theories . In particular we show in the case of the $ϕ^4$ theory that by choosing appropriately the
openaire   +2 more sources

REVIEW OF THE PHENOMENOLOGY OF NONCOMMUTATIVE GEOMETRY [PDF]

open access: yesInternational Journal of Modern Physics A, 2004
We present a pedagogical review of particle physics models that are based on the noncommutativity of space–time, [Formula: see text], with specific attention to the phenomenology these models predict in particle experiments either in existence or under development.
Hinchliffe, I., Kersting, N., Ma, Y. L.
openaire   +3 more sources

Nonlinear connections and spinor geometry

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We present an introduction to the geometry of higher-order vector and covector bundles (including higher-order generalizations of the Finsler geometry and Kaluza-Klein gravity) and review the basic results on Clifford and spinor structures on spaces ...
Sergiu I. Vacaru, Nadejda A. Vicol
doaj   +1 more source

Quantum Spacetime, Noncommutative Geometry and Observers

open access: yesUniverse, 2021
I discuss some issues related to the noncommutative spaces κ and its angular variant ρ-Minkowski with particular emphasis on the role of observers.
Fedele Lizzi
doaj   +1 more source

Noncommutative Schwarzschild geometry and generalized uncertainty principle

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
We discuss a possible link between the deformation parameter $$\Theta ^{\mu \nu }$$ Θμν arising in the framework of noncommutative geometry and the parameter $$\beta $$ β of the generalized uncertainty principle (GUP). We compute the shift of the Hawking
T. Kanazawa   +3 more
doaj   +1 more source

REMARKS ON INFLATION AND NONCOMMUTATIVE GEOMETRY [PDF]

open access: yesModern Physics Letters A, 2001
We briefly discuss some possible cosmological implications of noncommutative geometry. While the noncommutativity we consider does not affect gravity, it can play an important role in the dynamics of other fields that are present in the early universe.
Chu, CS, Greene, BR, Shiu, Man Lai Gary
openaire   +5 more sources

Spectral Triples in Particle Physics

open access: yesEPJ Web of Conferences, 2018
We give an overview of the approach to the Standard Model of Particle Physics and its extensions based on the Noncommutative Geometry. The notion of spectral triples is introduced and their applications in particle physics are presented. We revisit known
Bochniak Arkadiusz
doaj   +1 more source

Noncommutative gauge theories on D-branes in non-geometric backgrounds

open access: yesJournal of High Energy Physics, 2019
We investigate the noncommutative gauge theories arising on the worldvolumes of D-branes in non-geometric backgrounds obtained by T-duality from twisted tori.
Chris Hull, Richard J. Szabo
doaj   +1 more source

Top Quark Pair-Production in Noncommutative Standard Model

open access: yesAdvances in High Energy Physics, 2020
The differential cross-section of the top quark pair production via the quark-antiquark annihilation subprocess in hadron collision is calculated within the noncommutative standard model. A pure NC analytical expression for the forward-backward asymmetry
M. Fisli, N. Mebarki
doaj   +1 more source

String Geometry and the Noncommutative Torus [PDF]

open access: yesCommunications in Mathematical Physics, 1999
37 pages, LaTeX. Major revisions in section 3.
LANDI G., LIZZI, FEDELE, SZABO R.
openaire   +5 more sources

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