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A supersymmetric theory in two-dimensions has enough data to define a noncommutative space thus making it possible to use all tools of noncommutative geometry. In particular, we apply this to the N=1 supersymmetric non-linear sigma model…

High Energy Physics - Theory · Physics 2009-10-30 A. H. Chamseddine

We compute the leading terms of the spectral action for a noncommutative geometry model that has no fermion doubling. The spectral triple describing it, which is chiral and allows for CP-symmetry breaking, has the Dirac operator that is not…

High Energy Physics - Theory · Physics 2022-10-19 Arkadiusz Bochniak , Paweł Zalecki , Andrzej Sitarz

The Clifford algebra of the endomorphisms of the exterior algebra of a countably dimensional vector space induces natural bosonic shadows, i.e. families of linear maps between the cohomologies of complex grassmannians. The main result of…

Representation Theory · Mathematics 2024-10-22 Letterio Gatto , Malihe Yousofzadeh

We study spectral action for Riemannian manifolds with boundary, and then generalize this to noncommutative spaces which are products of a Riemannian manifold times a finite space. We determine the boundary conditions consistent with the…

High Energy Physics - Theory · Physics 2010-11-23 Ali H. Chamseddine , Alain Connes

A supersymmetric theory in two-dimensions has enough data to define a noncommutative space thus making it possible to use all the tools of noncommutative geometry. In particular, we apply this to the N=1 supersymmetric non-linear sigma…

High Energy Physics - Theory · Physics 2009-10-30 Ali H. Chamseddine

We review the approach to the standard model of particle interactions based on spectral noncommutative geometry. The paper is (nearly) self-contained and presents both the mathematical and phenomenological aspects. In particular the bosonic…

High Energy Physics - Theory · Physics 2019-07-24 Agostino Devastato , Maxim Kurkov , Fedele Lizzi

I will summarize Noncommutative Geometry Spectral Action, an elegant geometrical model valid at unification scale, which offers a purely gravitational explanation of the Standard Model, the most successful phenomenological model of particle…

High Energy Physics - Theory · Physics 2011-05-24 Mairi Sakellariadou

Using the formalism of superconnections, we show the existence of a bosonic action functional for the standard K-cycle in noncommutative geometry, giving rise, through the spectral action principle, only to the Einstein gravity and Standard…

High Energy Physics - Theory · Physics 2008-11-26 H. Figueroa , J. M. Gracia-Bondia , F. Lizzi , J. C. Varilly

We propose that the fermionic part of the action in the framework of the noncommutative description of the Standard Model is spectral, in an analogous way to the bosonic part of the action that is customary considered as being spectral. We…

High Energy Physics - Theory · Physics 2019-08-15 Mairi Sakellariadou , Andrzej Sitarz

The structure of 29-dimensional extended real Clifford-Dirac algebra, which has been introduced in our paper Phys. Lett. A, 2011, 375, 2479, is considered in brief. Using this algebra, the property of Fermi-Bose duality of the Dirac…

Mathematical Physics · Physics 2013-01-01 V. M. Simulik , I. Yu. Krivsky , I. L. Lamer

A variety of physical phenomena, such as amplification, absorption, and radiation, can be effectively described using non-Hermitian operators. However, the introduction of non-uniform non-Hermiticity can lead to the formation of exceptional…

Mathematical Physics · Physics 2025-09-12 Jose J. Garcia

In this publication we present an extension of the Standard Model within the framework of Connes' noncommutative geometry [1]. The model presented here is based on a minimal spectral triple [7] which contains the Standard Model particles,…

High Energy Physics - Theory · Physics 2013-04-02 Christoph A. Stephan

Given the algebra, Hilbert space H, grading and real structure of the finite spectral triple of the Standard Model, we classify all possible Dirac operators such that H is a self-Morita equivalence bimodule for the associated Clifford…

Mathematical Physics · Physics 2018-06-04 Ludwik Dabrowski , Francesco D'Andrea , Andrzej Sitarz

In this paper, we discuss two features of the noncommmutative geometry and spectral action approach to the Standard Model: the fact that the model is inherently Euclidean, and that it requires a quadrupling of the fermionic degrees of…

High Energy Physics - Theory · Physics 2016-07-27 Francesco D'Andrea , Maxim A. Kurkov , Fedele Lizzi

We propose a simple model of noncommutative geometry to describe the structure of the Standard Model, which satisfies spin${}_c$ condition, has no fermion doubling, does not lead to the possibility of color symmetry breaking and explains…

High Energy Physics - Theory · Physics 2020-04-29 Arkadiusz Bochniak , Andrzej Sitarz

Noncommutative geometry provides both a unified description of the Standard Model of particle physics together with Einstein-Hilbert action (in euclidean signature) and some tools to go beyond the Standard Model. In this paper, we extend to…

Mathematical Physics · Physics 2021-07-21 Manuele Filaci , Pierre Martinetti , Simone Pesco

We further explore the idea that physics takes place in Clifford space which should be considered as a generalization of spacetime. Following the old observation that spinors can be represented as members of left ideals of Clifford algebra,…

High Energy Physics - Theory · Physics 2007-05-23 Matej Pavsic

The machinery of noncommutative geometry is applied to a space of connections. A noncommutative function algebra of loops closely related to holonomy loops is investigated. The space of connections is identified as a projective limit of…

High Energy Physics - Theory · Physics 2009-11-11 Johannes Aastrup , Jesper M. Grimstrup

We propose a new framework for constructing geometric and physical models on nonholonomic manifolds provided both with Clifford -- Lie algebroid symmetry and nonlinear connection structure. Explicit parametrizations of generic off-diagonal…

High Energy Physics - Theory · Physics 2015-06-26 Sergiu I. Vacaru

The principles of noncommutative geometry impose severe restrictions on the structure of (almost) commutative field theories. The Standard Model fits surprisingly well into the noncommutative framework. Here we overview some universal…

High Energy Physics - Theory · Physics 2016-02-17 Dmitri Vassilevich
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