CENTRA Seminar - Resurgent Transseries: Beyond (Large N) Perturbative Expansions - 5 dezembro 2013



Resurgent Transseries: Beyond (Large N) Perturbative Expansions

Ricardo Schiappa

IST, Lisbon


Abstract / Resumo 

In this talk I will review recent progress in generically defining perturbation theory even in non-Borel summable situations, by making use of resurgent analysis and transseries. As an example, I will address the large N perturbative expansion and discuss new nonperturbative contributions found deep in the large-order expansion of the genus expansion. If time allows, I will also briefly comment on the large N dual picture (via matrix models), where resurgence and transseries may also be used to obtain nonperturbative solutions of closed (topological) string theory.


5 de dezembro de 2013 | 14:30

Meeting room on the 2nd floor of the Physics Department building


Watch it live on:  http://www.ustream.tv/channel/centra---ist-seminars (also available on CENTRA TV webpage)
Talks' slides: http://centra.ist.utl.pt/~blackholes/seminars/schiappa.pdf

Recorder Seminar: TBA


CENTRA Seminars