Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines hep-th
Date Jeudi 6 Mai 2021
Heure 10:00
Institut IHP
Salle (pwd= 1234)
Nom de l'orateur Hellerman
Prenom de l'orateur Simeon
Addresse email de l'orateur simeon [dot] hellerman [dot] 3 [at] gmail [dot] com
Institution de l'orateur Tokyo University, IPMU
Titre How Different Is More? : Precision correlators at large R-charge
Résumé Building up macroscopic physics from microscopic constituents is an idea as old as theoretical physics itself, and has been a perennial theme in quantum theory beginning with Bohr's correspondence principle and onward through the modern renormalization group. Recently there has been a semi-organized effort at applying this principle to strongly coupled conformal field theory, developing asymptotic series in inverse powers of a large quantum number as a systematic approximation scheme whose leading-order term is the familiar macroscopic limit. I will discuss this idea in the case of N=2 superconformal gauge theory in four dimensions, where it is possible to compute the large-quantum-number asymptotic series to all orders and even a hyperasymptotic series for the exponentially small corrections to it that are associated with the leading qualitative breakdown of the naive macroscopic picture. The results quite easily yield approximations accurate to 4-6 significant digits for quantum numbers of order 1, to 15 significant digits or better for quantum numbers of order 100. I will discuss the implications for one's general picture of the large-scale structure of theory space.
Numéro de preprint arXiv
Fichiers attachés
  • paris-saclay-talk-Hellerman.pdf (1175888 bytes) OPEN

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