Zobrazeno 1 - 10
of 510
pro vyhledávání: '"Madore, J"'
Autor:
Madore, J.
Using some elementary methods from noncommutative geometry a structure is given to a point of space-time which is different from and simpler than that which would come from extra dimensions. The structure is described by a supplementary factor in the
Externí odkaz:
http://arxiv.org/abs/1510.03915
Publikováno v:
Eur.Phys.J.C55:489-498,2008
Consider the quasi-commutative approximation to a noncommutative geometry. It is shown that there is a natural map from the resulting Poisson structure to the Riemann curvature of a metric. This map is applied to the study of high-frequency gravitati
Externí odkaz:
http://arxiv.org/abs/0709.3159
We examine gauge theories defined in higher dimensions where theextra dimensions form a fuzzy (finite matrix) manifold. First we reinterpret these gauge theories as four-dimensional theories with Kaluza-Klein modes and then we perform a generalized \
Externí odkaz:
http://arxiv.org/abs/0704.2880
Publikováno v:
JHEP0604:054,2006
A gravitational field can be defined in terms of a moving frame, which when made noncommutative yields a preferred basis for a differential calculus. It is conjectured that to a linear perturbation of the commutation relations which define the algebr
Externí odkaz:
http://arxiv.org/abs/hep-th/0603044
Autor:
Buric, M., Madore, J.
Publikováno v:
Phys.Lett. B622 (2005) 183-191
The noncommutative extension of a dynamical 2-dimensional space-time is given and some of its properties discussed. Wick rotation to euclidean signature yields a surface which has as commutative limit the doughnut but in a singular limit in which the
Externí odkaz:
http://arxiv.org/abs/hep-th/0507064
Autor:
Buric, M., Madore, J.
A review is given of some 2-dimensional metrics for which noncommutative versions have been found. They serve partially to illustrate a noncommutative extension of the moving-frame formalism. All of these models suggest that there is an intimate rela
Externí odkaz:
http://arxiv.org/abs/hep-th/0406232
Publikováno v:
Fortsch.Phys. 52 (2004) 718-723
We combine and exploit ideas from Coset Space Dimensional Reduction (CSDR) methods and Non-commutative Geometry. We consider the dimensional reduction of gauge theories defined in high dimensions where the compact directions are a fuzzy space (matrix
Externí odkaz:
http://arxiv.org/abs/hep-th/0401200
Autor:
Bajc, B., Pavsic, M., Mangano, G., Grumiller, D., Kummer, W., Liu, J. T., Maceda, M., Madore, J.
Publikováno v:
Bled workshops in physics, Vol.4, No. 2-3, DMFA Zaloznistvo, Ljubljana, Dec. 2003
Contents of Part 2: 11. Supersymmetric Grandunification and Fermion Masses (B. Bajc) 12. General Principles of Brane Kinematics and Dynamics (M. Pavsic) 13. Cosmological Neutrinos (G. Mangano) 14. The Problem of Mass (C.D. Froggatt) 15. How to Approa
Externí odkaz:
http://arxiv.org/abs/hep-ph/0401055
Publikováno v:
JHEP 0404 (2004) 034
We examine gauge theories on Minkowski space-time times fuzzy coset spaces. This means that the extra space dimensions instead of being a continuous coset space S/R are a corresponding finite matrix approximation. The gauge theory defined on this non
Externí odkaz:
http://arxiv.org/abs/hep-th/0310072