Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2011-11-18
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
4 pages, proceedings of Loops 11 conference, Madrid; to appear in Journal of Physics: Conference Series (JPCS)
Scientific paper
The Hamiltonian formulation of the Holst action in vacuum and in the presence
of matter fields is analyzed in a generic local Lorentz frame. It is elucidated
how the SU(2) gauge symmetry is inferred by reducing the set of constraints to
a first-class one. The consequences of the proposed approach for Loop Quantum
Gravity and Spin Foam models are discussed.
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