PIRSA:17060102 Conference Cosmology

DOI10.48660/17060102

Conference/School: Bounce Scenarios in Cosmology

Bojowald, M. (2017). Space(-time) structure in models of loop quantum gravity. Perimeter Institute. https://pirsa.org/17060102

Bojowald, Martin. Space(-time) structure in models of loop quantum gravity. Perimeter Institute, Jun. 27, 2017, https://pirsa.org/17060102 

@misc{ pirsa_PIRSA:17060102,
  doi = {10.48660/17060102},
  url = {https://pirsa.org/17060102},
  author = {Bojowald, Martin},
  keywords = {Cosmology},
  language = {en},
  title = {Space(-time) structure in models of loop quantum gravity},
  publisher = {Perimeter Institute},
  year = {2017},
  month = {jun},
  note = {PIRSA:17060102 see, \url{https://pirsa.org}}
}

Abstract

Loop quantum gravity has suggested modifications of the dynamics of cosmological models that could lead to a bounce at large curvature. However, the same modifications may alter the gauge structure of the theory, which is related to the structure of space-time. In a large class of examples the space-time structure has been derived and shown to imply signature change just in the bounce region. The picture of a cyclic universe with a deterministic bounce then has to be replaced by the scenario of a non-singular beginning some finite time ago.

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