PIRSA:13100102

Video URL

https://pirsa.org/13100102

Hybrid quantization of the Gowdy model within loop quantum cosmology

Martin-Benito, M. (2013). Hybrid quantization of the Gowdy model within loop quantum cosmology. Perimeter Institute for Theoretical Physics. https://pirsa.org/13100102

Martin-Benito, Mercedes. Hybrid quantization of the Gowdy model within loop quantum cosmology. Perimeter Institute for Theoretical Physics, Oct. 15, 2013, https://pirsa.org/13100102 

          @misc{ scivideos_PIRSA:13100102,
            doi = {10.48660/13100102},
            url = {https://pirsa.org/13100102},
            author = {Martin-Benito, Mercedes},
            keywords = {Cosmology},
            language = {en},
            title = {Hybrid quantization of the Gowdy model within loop quantum cosmology},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2013},
            month = {oct},
            note = {PIRSA:13100102 see, \url{https://scivideos.org/pirsa/13100102}}
          }

Mercedes Martin-Benito Complutense University of Madrid

Talk numberPIRSA:13100102
DOI10.48660/13100102
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Loop quantum cosmology (LQC) proposes a quantization for homogeneous cosmologies which success in solving the classical singularity problem. Realistic scenarios call for the consideration of inhomogeneities. Focusing on the simplest inhomogenous cosmological model, the Gowdy model with three-torus spatial topology and linearly polarized gravitational waves, I'll describe an approach to treat inhomogeneities in the framework of loop quantum cosmology. This is a hybrid approach that combines LQC methods with Fock quantization. Furthermore, I'll discuss justified approximations that allow us to find approximate solutions to the (very complicated) Hamiltonian constraint of the model.