PIRSA:14040101 Conference

DOI10.48660/14040101

Conference/School: Renormalization Group Approaches to Quantum Gravity

Bahr, B. (2014). On background-independent renormalization in state-sum model. Perimeter Institute. https://pirsa.org/14040101

Bahr, Benjamin. On background-independent renormalization in state-sum model. Perimeter Institute, Apr. 24, 2014, https://pirsa.org/14040101 

@misc{ pirsa_PIRSA:14040101,
  doi = {10.48660/14040101},
  url = {https://pirsa.org/14040101},
  author = {Bahr, Benjamin},
  keywords = {},
  language = {en},
  title = {On background-independent renormalization in state-sum model},
  publisher = {Perimeter Institute},
  year = {2014},
  month = {apr},
  note = {PIRSA:14040101 see, \url{https://pirsa.org}}
}

Abstract

In this talk we discuss some notion of coarse graining in state-sums, most notably a class of spin foam models in their holonomy representations. We discuss the notion of scale in this context, and how diffeomorphism-invariance ties into the existence of a continuum limit. We close with an example and muse about the interplay between diffeomorphism-invariance and non-renormalizability.

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