operator product expansion

under construction

operator product expansion (OPE) in QFT-s (especially in CFT)

Mantra in the case of perturbative QFTs: perturbative QFTs are about the deformation theory controlled by certain L-infinity algebra which is constructed from OPE-s

See also


In perturbative quantum field theory:

Brief survey is at

Revised on September 7, 2017 11:55:21 by Urs Schreiber (