Time in (2+1)-Dimensional Quantum Gravity

Details Time in (2+1)-Dimensional Quantum Gravity Time in (2+1)-Dimensional Quantum Gravity

1994-05-20

arxiv.org/abs/gr-qc/9405043v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, LaTeX, UCD-94-18

Scientific paper

General relativity in three spacetime dimensions is used to explore three approaches to the ``problem of time'' in quantum gravity: the internal Schr\"odinger approach with mean extrinsic curvature as a time variable, the Wheeler-DeWitt equation, and covariant canonical quantization with ``evolving constants of motion.'' (To appear in {\em Proc.\ of the Lanczos Centenary Conference}, Raleigh, NC, December 1993.)

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