Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-06-02
Physics
High Energy Physics
High Energy Physics - Theory
Latex, 15 pages, talk given at the 6th Conference on Clifford Algebras and Applications, Cookeville, TN, May 2002
Scientific paper
The progress of noncommutative geometry has been crucially influenced, from the beginning, by quantum physics: we review this development in recent years. The Standard Model, with its central role for the Dirac operator, led to several formulations culminating in the concept of a real spectral triple. String theory then came into contact with NCG, leading to an emphasis on Moyal-like algebras and formulations of quantum field theory on noncommutative spaces. Hopf algebras have yielded an unexpected link between the noncommutative geometry of foliations and perturbative quantum field theory. The quest for a suitable foundation of quantum gravity continues to promote fruitful ideas, among them the spectral action principle and the search for a better understanding of "noncommutative spaces".
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