PIRSA:12050076

Video URL

https://pirsa.org/12050076

Time and a Physical Hamiltonian for Quantum Gravity

Husain, V. (2012). Time and a Physical Hamiltonian for Quantum Gravity. Perimeter Institute for Theoretical Physics. https://pirsa.org/12050076

Husain, Viqar. Time and a Physical Hamiltonian for Quantum Gravity. Perimeter Institute for Theoretical Physics, May. 12, 2012, https://pirsa.org/12050076 

          @misc{ scivideos_PIRSA:12050076,
            doi = {10.48660/12050076},
            url = {https://pirsa.org/12050076},
            author = {Husain, Viqar},
            keywords = {},
            language = {en},
            title = {Time and a Physical Hamiltonian for Quantum Gravity},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2012},
            month = {may},
            note = {PIRSA:12050076 see, \url{https://scivideos.org/pirsa/12050076}}
          }

Viqar Husain University of New Brunswick

Talk numberPIRSA:12050076
DOI10.48660/12050076
Source RepositoryPIRSA
Collection
Talk Type Conference

Abstract

I will describe an approach to the problem of time that uses dust as a time variable. The canonical theory is such that there is a true Hamiltonian with spatial diffeomorphisms as the only gauge symmetry. This feature, and the form of the Hamiltonian, suggest a model for non-perturbative quantum gravity that is computationally accessible using the formalism of loop quantum gravity.