131 citations · 289 across the 6 of their papers we have counts for
9 papers · 1 filter
The present moment in quantum cosmology: challenges to the arguments for the elimination of time
Lee Smolin
Barbour, Hawking, Misner and others have argued that time cannot play an essential role in the formulation of a quantum theory of cosmology. Here we present three challenges to the…
A possible solution to the problem of time in quantum cosmology
Stuart Kauffman, Lee Smolin
We argue that in classical and quantum theories of gravity the configuration space and Hilbert space may not be constructible through any finite procedure. If this is the case then…
The future of spin networks
Lee Smolin
The roles that spin networks play in gauge theories, quantum gravity and topological quantum field theory are briefly described, with an emphasis on the question of the relationshi…
The classical limit and the form of the hamiltonian constraint in nonperturbative quantum gravity
Lee Smolin
It is argued that some approaches to non-perturbative quantum general relativity lack a sensible continuum limit that reproduces general relativity. The basic problem is that gener…
Three Dimensional Strings as Collective Coordinates of Four Dimensional Non-Perturbative Quantum Gravity
Lee Smolin
A string theory in euclidean spacetime dimensions is found to describe the semiclassical behavior of a certain exact physical state of quantum general relativity in dimensi…
Mixmaster quantum cosmology in terms of physical dynamics
Seth Major, Lee Smolin
An approach to quantum cosmology, relying on strengths of both canonical and path integral formalisms, is applied to the cosmological model, Bianchi type IX. Physical quantum state…