PIRSA:17050055

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

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}}
          }

Sean Gryb University of Groningen

DOI 10.48660/17050055
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.