Quantization of the Reduced Phase Space of Two-Dimensional Dilaton Gravity

Details Quantization of the Reduced Phase Space of Two-Dimensional Dilaton Gravity Quantization of the Reduced Phase Space of Two-Dimensional Dilaton Gravity

1995-06-19

arxiv.org/abs/gr-qc/9506035v1

Phys.Rev.D53:4366-4373,1996

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

19 pages, LaTeX

Scientific paper

10.1103/PhysRevD.53.4366

We study some two-dimensional dilaton gravity models using the formal theory of partial differential equations. This allows us to prove that the reduced phase space is two-dimensional without an explicit construction. By using a convenient (static) gauge we reduce the theory to coupled \ode s and we are able to derive for some potentials of interest closed-form solutions. We use an effective (particle) Lagrangian for the reduced field equations in order to quantize the system in a finite-dimensional setting leading to an exact partial differential Wheeler-DeWitt equation instead of a functional one. A WKB approximation for some quantum states is computed and compared with the classical Hamilton-Jacobi theory. The effect of minimally coupled matter is examined.

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