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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

We present a physical interpretation of the doubling of the algebra, which is the basic ingredient of the noncommutative spectral geometry, developed by Connes and collaborators as an approach to unification. We discuss its connection to…

Mathematical Physics · Physics 2015-06-03 Mairi Sakellariadou , Antonio Stabile , Giuseppe Vitiello

While there has been growing interest for noncommutative spaces in recent times, most examples have been based on the simplest noncommutative algebra: [x_i,x_j]=i theta_{ij}. Here we present new classes of (non-formal) deformed products…

High Energy Physics - Theory · Physics 2009-11-07 J. M. Gracia-Bondia , F. Lizzi , G. Marmo , P. Vitale

Motivated by the search for new examples of ``noncommutative manifolds'', we study the noncommutative geometry (in the sense of Connes) of the group C*-algebra of the three dimensional discrete Heisenberg group. We present a unified…

Operator Algebras · Mathematics 2008-10-13 Tom Hadfield

We propose an expansion of the definition of almost-commutative spectral triple that accommodates non-trivial fibrations and is stable under inner fluctuation of the metric, and then prove a reconstruction theorem for almost-commutative…

Mathematical Physics · Physics 2012-07-02 Branimir Ćaćić

We introduce a family of spectral triples that describe the curved noncommutative two-torus. The relevant family of new Dirac operators is given by rescaling one of two terms in the flat Dirac operator. We compute the dressed scalar…

Quantum Algebra · Mathematics 2018-06-04 Ludwik Dabrowski , Andrzej Sitarz

Our aim in this review article is to present the applications of Connes' noncommutative geometry to elementary particle physics. Whereas the existing literature is mostly focused on a mathematical audience, in this article we introduce the…

High Energy Physics - Theory · Physics 2012-10-16 Koen van den Dungen , Walter D. van Suijlekom

The notion of a K\"ahler structure for a differential calculus was recently introduced by the second author as a framework in which to study the noncommutative geometry of the quantum flag manifolds. It was subsequently shown that any…

Quantum Algebra · Mathematics 2020-07-30 Biswarup Das , Réamonn Ó Buachalla , Petr Somberg

Let $Z$ be a projective hypersurface such that its underlying reduced variety has only isolated singularities. In case its irreducible components have constant multiplicities, for instance if $\dim Z>1$, we show that the spectrum of its…

Algebraic Geometry · Mathematics 2025-08-08 Seung-Jo Jung , Morihiko Saito , Youngho Yoon

Spectral triples and quantum statistical mechanical systems are two important constructions in noncommutative geometry. In particular, both lead to interesting reconstruction theorems for a broad range of geometric objects, including number…

Mathematical Physics · Physics 2013-05-24 Mark Greenfield , Matilde Marcolli , Kevin Teh

In [1], Connes presented axioms governing noncommutative geometry. He went on to claim that when specialised to the commutative case, these axioms recover spin or spin^c geometry depending on whether the geometry is ''real'' or not. We…

Mathematical Physics · Physics 2007-05-23 A. Rennie

Starting with a spectral triple one can associate two canonical differential graded algebras (dga) defined by Connes and Fr\"ohlich et al. For the classical spectral triples associated with compact Riemannian spin manifolds both these dgas…

Operator Algebras · Mathematics 2026-01-19 Partha Sarathi Chakraborty , Satyajit Guin

Modulo some natural generalizations to noncompact spaces, we show in this letter that Moyal planes are nonunital spectral triples in the sense of Connes. The action functional of these triples is computed, and we obtain the expected result,…

High Energy Physics - Theory · Physics 2009-11-10 V. Gayral

In this paper we study spectral triples and non-commutative expectations associated to expanding and weakly expanding maps. In order to do so, we generalize the Perron-Frobenius-Ruelle theorem and obtain a polynomial decay of the operator,…

Dynamical Systems · Mathematics 2024-03-27 Leandro Cioletti , L. Y. Hataishi , Artur O. Lopes , M. Stadlbauer

The residue cocycle associated to a suitable spectral triple is the key component of the Connes-Moscovici local index theorem in noncommutative geometry. We review the relationship between the residue cocycle and heat kernel asymptotics. We…

Operator Algebras · Mathematics 2021-05-24 Ahmad Reza Haj Saeedi Sadegh , Yiannis Loizides , Jesus Sanchez

An intersection of Noncommutative Geometry and Loop Quantum Gravity is proposed. Alain Connes' Noncommutative Geometry provides a framework in which the Standard Model of particle physics coupled to general relativity is formulated as a…

High Energy Physics - Theory · Physics 2010-10-27 Johannes Aastrup , Jesper M. Grimstrup

We give a local expression for the {\it scalar curvature} of the noncommutative two torus $ A_{\theta} = C(\mathbb{T}_{\theta}^2)$ equipped with an arbitrary translation invariant complex structure and Weyl factor. This is achieved by…

Quantum Algebra · Mathematics 2011-10-18 Farzad Fathizadeh , Masoud Khalkhali

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 aims to provide an explicit computation of the spectral torsion associated with the Connes type operator on even dimension compact manifolds.And we also extend the spectral torsion for the Connes type operator to compact…

Mathematical Physics · Physics 2025-05-30 Jian Wang , Yong Wang

Connes' noncommutative approach to the standard model of electromagnetic, weak and strong forces is sketched as well as its unification with general relativity.

High Energy Physics - Theory · Physics 2009-11-10 Thomas Schucker