PIRSA:10100037 Scientific Series Quantum Gravity

DOI10.48660/10100037

Series: Quantum Gravity

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

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

@misc{ pirsa_PIRSA:10100037,
  doi = {10.48660/10100037},
  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.

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