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PIRSA:17050055

Video URL

https://pirsa.org/17050055

Quantum singularity resolution in homogeneous cosmology and the implications for shape dynamics

          @misc{ scivideos_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 for Theoretical Physics},
            year = {2017},
            month = {may},
            note = {PIRSA:17050055 see, \url{https://scivideos.org/index.php/pirsa/17050055}}
          }

Sean Gryb University of Groningen

Talk numberPIRSA:17050055
DOI10.48660/17050055
Source RepositoryPIRSA
Collection
Talk Type Conference
Subject

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.