Number Theory, Strings, and Quantum Physics

31 May 2021 to 5 June 2021
Online
Asia/Tokyo timezone

Mathieu Moonshine: Quarter BPS states at the Kummer point and nearby

3 Jun 2021, 17:30
1h 15m
Online

Online

Organized by Kavli IPMU

Speaker

Anne Taormina (Durham U.)

Description

The construction of $\mathbb{Z}_2$ orbifolds of toroidal conformal field theories (CFTs) is induced by the Kummer construction of a K3 surface. These theories provide a vantage point from which to study the quarter BPS states of K3 theories which are at the heart of the Mathieu Moonshine phenomenon. In this talk, we argue that a non-trivial SU(2) action on a subspace of quarter BPS states in these orbifold CFTs governs the pairing of states that lift from the BPS bound upon a given type of deformation.

Presentation Materials

There are no materials yet.