A remark on the motivic Galois group and the quantum coadjoint action

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dc.creatorGrosse, Harald
dc.creatorSchlesinger, Karl-Georg
dc.date2004-12-15
dc.date.accessioned2026-07-07T12:26:45Z
dc.date.available2026-07-07T12:26:45Z
dc.descriptionIt was suggested by Kontsevich that the Grothendieck-Teichmueller group GT should act on the Duflo isomorphism of su(2) but the corresponding realization of GT turned out to be trivial. We show that a solvable quotient of the motivic Galois group - which is supposed to agree with GT - is closely related to the quantum coadjoint action on U_q(sl_2) for q a root of unity, i.e. in the quantum group case one has a nontrivial realization of a quotient of the motivic Galois group. From a discussion of the algebraic properties of this realization we conclude that in more general cases than U_q(sl_2) it should be related to a quantum version of the motivic Galois group. Finally, we discuss the relation of our construction to quantum field and string theory and explain what we believe to be the "physical reason" behind this relation between the motivic Galois group and the quantum coadjoint action. This might be a starting point for the generalization of our construction to more involved examples.
dc.description19 pages
dc.identifierhttps://arxiv.org/abs/hep-th/0412162
dc.identifierhttp://arxiv.org/abs/hep-th/0412162
dc.identifierEur.Phys.J.C46:269-275,2006
dc.identifierdoi:10.1140/epjc/s2006-02487-8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214983
dc.subjectHigh Energy Physics - Theory
dc.titleA remark on the motivic Galois group and the quantum coadjoint action
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