PIRSA:17050055 Conference Quantum Gravity

DOI10.48660/17050055

Conference/School: Shape Dynamics Workshop

Gryb, S. (2017). Quantum singularity resolution in homogeneous cosmology and the implications for shape dynamics. Perimeter Institute. https://pirsa.org/17050055

Gryb, Sean. Quantum singularity resolution in homogeneous cosmology and the implications for shape dynamics. Perimeter Institute, May. 17, 2017, https://pirsa.org/17050055 

@misc{ pirsa_PIRSA:17050055,
  doi = {10.48660/17050055},
  url = {https://pirsa.org/17050055},
  author = {Gryb, Sean},
  keywords = {Quantum Gravity},
  language = {en},
  title = {Quantum singularity resolution in homogeneous cosmology and the implications for shape dynamics},
  publisher = {Perimeter Institute},
  year = {2017},
  month = {may},
  note = {PIRSA:17050055 see, \url{https://pirsa.org}}
}

Abstract

I will present results on the quantization of an FRLW model that utilises a Schrodinger-type evolution equation. In contrast to standard Wheeler--DeWitt-type quantisations, the quantum model resolves the classical singularity, exhibits a quantum bounce, and displays novel early-universe phenomenology. A global scale emerges because of a scale anomaly, and suggests an interesting scenario for quantum shape dynamics. I will give the details of the quantization procedure and show how these techniques can be used more generally for anisotropic models. I will end by speculating about how these techniques might be applicable to a genuine quantum shape model of the universe.

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