Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1993-12-07
Class.Quant.Grav.11:1615-1630,1994
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
15 pages, LaTeX, 1 postscript figure included, uses epsf.sty, G\"oteborg ITP 93-39
Scientific paper
10.1088/0264-9381/11/7/005
We consider the phase-space of Yang-Mills on a cylindrical space-time ($S^1 \times {\bf R}$) and the associated algebra of gauge-invariant functions, the $T$-variables. We solve the Mandelstam identities both classically and quantum-mechanically by considering the $T$-variables as functions of the eigenvalues of the holonomy and their associated momenta. It is shown that there are two inequivalent representations of the quantum $T$-algebra. Then we compare this reduced phase space approach to Dirac quantization and find it to give essentially equivalent results. We proceed to define a loop representation in each of these two cases. One of these loop representations (for $N=2$) is more or less equivalent to the usual loop representation.
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