PIRSA:10100037

A New Perspective on Quantum Field Theory

APA

Rosten, O. (2010). A New Perspective on Quantum Field Theory. Perimeter Institute. https://pirsa.org/10100037

MLA

Rosten, Oliver. A New Perspective on Quantum Field Theory. Perimeter Institute, Oct. 20, 2010, https://pirsa.org/10100037

BibTex

          @misc{ pirsa_10100037,
            doi = {},
            url = {https://pirsa.org/10100037},
            author = {Rosten, Oliver},
            keywords = {Quantum Gravity},
            language = {en},
            title = {A New Perspective on Quantum Field Theory},
            publisher = {Perimeter Institute},
            year = {2010},
            month = {oct},
            note = {PIRSA:10100037 see, \url{https://pirsa.org}}
          }
          

Abstract

The Exact Renormalization Group (ERG) is a technique which can be fruitfully applied to systems with local interactions that exhibit a large number of degrees of freedom per correlation length. In the first part of the talk I will give a very general overview of the ERG, focussing on its applications in quantum field theory (QFT) and critical phenomena. In the second part I will discuss how a particular extension of the formalism suggests a new understanding of correlation functions in QFTs, in general, and gauge theories in particular.