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Seminar of the Department of Mathematical Physics, Steklov Mathematical Institute of RAS
May 21, 2015 11:00, Moscow, Steklov Mathematical Institute of RAS, Room 430 (8 Gubkina)
 


The unreasonable effectiveness of mathematical deformation theory in physics, especially quantum mechanics and maybe elementary particles symmetries

Daniel Sternheimerab

a Rikkyo University
b Université de Bourgogne

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Abstract: New fundamental physical theories can, so far a posteriori, be seen as emerging from existing ones via some kind of deformation. The main paradigms are the physics revolutions from the beginning of the twentieth century, quantum mechanics (via “deformation quantization”) and special relativity (symmetry deformation from the Galilean to the Poincar groups). I shall explain the mathematical and physical basics, especially of deformation quantization, and describe some consequences. In the latter part of last century arose the standard model of elementary particles, based on empirically guessed symmetries: I shall indicate how its symmetries might “emerge” from the symmetry of relativity by “geometric” deformation (to Anti de Sitter, and singleton physics for photons and leptons) and quantum groups deformation quantization (for hadrons), and give the flavour of the hard mathematical problems raised, a solution to which might lead to a re-foundation of half a century of particle physics.

Language: English

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