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Séminaire Math-Phys : BPS invariants, quivers and line defects

Lundi 14 décembre 2015 10:45-11:45 - Michele Cirafici - Instituto Superior Técnico

Séminaire Math-Phys : BPS invariants, quivers and line defects

Résumé : I will discuss the problem of studying line defects in certain supersymmetric quantum field theories. Physicists are interested in understanding certain BPS states associated with such defects. I will give a precise description of these quantities in terms of certain enumerative invariants associated with a class of framed quivers. The computation of these invariants can be reduced to a purely combinatorial problem. If time permits, I will also describe a connection with the theory of cluster algebras.

Lieu : Salle 318

Pour en savoir plus sur cet événement, consultez l'article Séminaires Math-Physique