PIRSA:08120057 Conference Quantum Fields and Strings

DOI10.48660/08120057

Conference/School: Young Researchers Conference 2008

Tachikawa, Y. (2008). Story of a & c. Perimeter Institute. https://pirsa.org/08120057

Tachikawa, Yuji. Story of a & c. Perimeter Institute, Dec. 11, 2008, https://pirsa.org/08120057 

@misc{ pirsa_PIRSA:08120057,
  doi = {10.48660/08120057},
  url = {https://pirsa.org/08120057},
  author = {Tachikawa, Yuji},
  keywords = {Quantum Fields and Strings},
  language = {en},
  title = {Story of a \& c},
  publisher = {Perimeter Institute},
  year = {2008},
  month = {dec},
  note = {PIRSA:08120057 see, \url{https://pirsa.org}}
}

Abstract

In two dimensional CFTs the Zamolodchikov\'s c-theorem is fundamental in that it shows that the number of degrees of freedom decreases along the renormalization group flow. I will give a short history of and discuss recent developments in the quest to find its four-dimensional analogue using the central charges a & c.

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