Propagating spin modes in canonical quantum gravity

Details Propagating spin modes in canonical quantum gravity Propagating spin modes in canonical quantum gravity

1998-10-07

arxiv.org/abs/gr-qc/9810024v1

Phys.Rev. D60 (1999) 024002

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, 7 figures included using epsfig

Scientific paper

10.1103/PhysRevD.60.024002

One of the main results in canonical quantum gravity is the introduction of spin network states as a basis on the space of kinematical states. To arrive at the physical state space of the theory though we need to understand the dynamics of the quantum gravitational states. To this aim we study a model in which we allow for the spins, labeling the edges of spin networks, to change according to simple rules. The gauge invariance of the theory, restricting the possible values for the spins, induces propagating modes of spin changes. We investigate these modes under various assumptions about the parameters of the model.

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