PIRSA:08050007 Course

Courses: The Exact Renormalization Group

Rosten, O. (2008). The Exact Renormalization Group - Lecture 4: Gauge Theories. Perimeter Institute. https://pirsa.org/08050007

Rosten, Oliver. The Exact Renormalization Group - Lecture 4: Gauge Theories. Perimeter Institute, May. 07, 2008, https://pirsa.org/08050007 

@misc{ pirsa_PIRSA:08050007,
  doi = {},
  url = {https://pirsa.org/08050007},
  author = {Rosten, Oliver},
  keywords = {},
  language = {en},
  title = {The Exact Renormalization Group - Lecture 4: Gauge Theories},
  publisher = {Perimeter Institute},
  year = {2008},
  month = {may},
  note = {PIRSA:08050007 see, \url{https://pirsa.org}}
}

Abstract

At first sight, the ERG does not sit well with gauge theories: a naive implementation of the momentum cutoff central to the ERG breaks gauge invariance. However, things are not as they seem. Not only is it possible to construct a gauge invariant cutoff, but it is possible to construct manifestly gauge invariant ERGs. I will discuss the formulation, what has been achieved to date, and what can reasonably be hoped for in the future.

Resources