Time and a Physical Hamiltonian for Quantum Gravity
APA
Husain, V. (2012). Time and a Physical Hamiltonian for Quantum Gravity. Perimeter Institute. https://pirsa.org/12050076
MLA
Husain, Viqar. Time and a Physical Hamiltonian for Quantum Gravity. Perimeter Institute, May. 12, 2012, https://pirsa.org/12050076
BibTex
@misc{ pirsa_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}, year = {2012}, month = {may}, note = {PIRSA:12050076 see, \url{https://pirsa.org}} }
University of New Brunswick
Collection
Talk Type
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.