The O(N) vector model at large charge: EFT, large N and resurgence (Napoli)


I will discuss the IR fixed point of the O(N) vector model in 3 dimensions (Wilson-Fisher point) in the framework of the large charge expansion. First I will construct an EFT valid for any N, then verify the prediction of the model in the double scaling limit of large N, large charge and finally discuss the use of resurgence to extend the validity of the EFT to sectors of small charge.

16 Feb 2021 13:30
QFT café
Napoli, Italy
Domenico Orlando
Domenico Orlando

My research interests include string theory, conformal field theory, supersymmetric gauge theories and integrability