Seminarium: Holography of the subleading central charges in 2d and 4d SCFTs

  • Datum:
  • Plats: A73121
  • Föreläsare: Arash Arabi (Uppsala)
  • Kontaktperson: Fabrizio Nieri
  • Seminarium

Superconformal field theories (SCFTs) in two, four, and six dimensions have "Weyl anomalies"---i.e. anomalies under Weyl scalings---that are characterized by their so-called "central charges". I explain how these central charges can be produced holographically through computations in the dual AdS supergravity theories. In particular, I present simple formulas---discovered in collaboration with Larsen, Liu, and Szepietowski---relating the subleading central charges of 2d and 4d SCFTs to the superconformal index of their dual supergravity theories. The formulas confirm many well-understood dualities, and lead to novel predictions for several still not-well-understood holographic SCFTs. Finally, I describe the ongoing work on the analogous problem for 6d holographic SCFTs.