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I give a summary of the progress made on using the elegant construction of Alain Connes noncommutaive geometry to explore the nature of space-time at very high energies. In particular I show that by making very few natural and weak…

High Energy Physics - Theory · Physics 2019-08-20 Ali H. Chamseddine

Using Connes distance formula in noncommutative geometry, it is possible to retrieve the Euclidean distance from the canonical commutation relations of quantum mechanics. In this note, we study modifications of the distance induced by a…

Mathematical Physics · Physics 2014-06-11 Francesco D'andrea , Fedele Lizzi , Pierre Martinetti

Application of the noncommutative geometry to several physical models is considered.

General Relativity and Quantum Cosmology · Physics 2007-05-23 P. A. Saponov

Connes' notion of non-commutative geometry (NCG) generalizes Riemannian geometry and yields a striking reinterepretation of the standard model of particle physics, coupled to Einstein gravity. We suggest a simple reformulation with two key…

High Energy Physics - Theory · Physics 2015-06-18 Latham Boyle , Shane Farnsworth

This paper introduces arithmetic geometry for polynomial identity algebras using non-commutative (formal) deformation theory. Since formal deformation theory is inherently local the arithmetic and geometric results that follow give local…

Number Theory · Mathematics 2023-08-29 Daniel Larsson

We study the problem of calculating noncommutative distances on graphs, using techniques from linear algebra, specifically, Birkhoff-James orthogonality. A complete characterization of the solutions is obtained in the case when the…

Operator Algebras · Mathematics 2024-09-09 Pierre Clare , Chi-Kwong Li , Edward Poon , Eric Swartz

This paper is a very brief and gentle introduction to non-commutative geometry geared primarily towards physicists and geometers. It starts with a brief historical description of the motivation for non-commutative geometry and then goes on…

High Energy Physics - Theory · Physics 2020-08-20 Ernesto Lupercio

In recent years, several quantizations of real manifolds have been studied, in particular from the point of view of Connes' noncommutative geometry. Less is known for complex noncommutative spaces. In this paper, we review some recent…

Quantum Algebra · Mathematics 2012-03-06 Francesco D'Andrea , Giovanni Landi

Noncommutative geometry allows to unify the basic building blocks of particle physics, Yang-Mills-Higgs theory and General relativity, into a single geometrical framework. The resulting effective theory constrains the couplings of the…

High Energy Physics - Phenomenology · Physics 2013-05-15 Christoph A. Stephan

Non-commutative geometry (NCG) is a mathematical discipline developed in the 1990s by Alain Connes. It is presented as a new generalization of usual geometry, both encompassing and going beyond the Riemannian framework, within a purely…

Mathematical Physics · Physics 2023-04-19 Gaston Nieuviarts

This article describes recent applications of algebraic geometry to noncommutative algebra. These techniques have been particularly successful in describing graded algebras of small dimension.

Rings and Algebras · Mathematics 2007-05-23 J. T. Stafford

This thesis concerns the research on a Lorentzian generalization of Alain Connes' noncommutative geometry. In the first chapter, we present an introduction to noncommutative geometry within the context of unification theories. The second…

Mathematical Physics · Physics 2011-08-03 Nicolas Franco

In the noncommutative geometry approach to the standard model we discuss the possibility to derive the extra scalar field sv- initially suggested by particle physicist to stabilize the electroweak vacuum - from a "grand algebra" that…

High Energy Physics - Theory · Physics 2015-09-02 Agostino Devastato

The formalism of non-commutative geometry of A. Connes is used to construct models in particle physics. The physical space-time is taken to be a product of a continuous four-manifold by a discrete set of points. The treatment of Connes is…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. H. Chamseddine , G. Felder , J. Fröhlich

In this paper, we study the properties of Connes spectral distances between quantum states under unitary transformations. We mainly focus on spectral triples with matrix algebras acting on finite dimensional Hilbert spaces via some linear…

Mathematical Physics · Physics 2026-05-14 Ji-Hong Wang , Bing-Sheng Lin , Zhi-Kang You

An algorithm to compute Connes spectral distance, adaptable to the Hilbert-Schmidt operatorial formulation of non-commutative quantum mechanics, was developed earlier by introducing the appropriate spectral triple and used to compute…

Connes' gauge theory is defined on noncommutative space-times. It is applied to formulate a noncommutative Glashow-Weinberg-Salam (GWS) model in the leptonic sector. It is shown that the model has two Higgs doublets and the gauge bosons…

High Energy Physics - Theory · Physics 2007-05-23 Katsusada Morita

We study the metric aspect of the Moyal plane from Connes' noncommutative geometry point of view. First, we compute Connes' spectral distance associated with the natural isometric action of R^2 on the algebra of the Moyal plane A. We show…

Mathematical Physics · Physics 2013-01-10 Pierre Martinetti , Luca Tomassini

Distance Geometry is based on the inverse problem that asks to find the positions of points, in a Euclidean space of given dimension, that are compatible with a given set of distances. We briefly introduce the field, and discuss some open…

Metric Geometry · Mathematics 2016-10-04 Leo Liberti , Carlile Lavor

This is a brief review where some basic elements of non-commutative geometry are given. The rules and ingredients that enter in the construction of the standard model and grand unification models in non-commutative geometry are summarized.…

High Energy Physics - Theory · Physics 2015-03-10 A. H. Chamseddine