Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1996-06-29
J.Math.Phys. 39 (1998) 3347-3371
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
27 pages, Latex
Scientific paper
10.1063/1.532259
We derive a closed formula for the matrix elements of the volume operator for canonical Lorentzian quantum gravity in four spacetime dimensions in the continuum in a spin-network basis. We also display a new technique of regularization which is state dependent but we are forced to it in order to maintain diffeomorphism covariance and in that sense it is natural. We arrive naturally at the expression for the volume operator as defined by Ashtekar and Lewandowski up to a state independent factor.
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