Quantum gravity and the problem of measurement
Pedro F. Gonzalez-Diaz
Abstract
We discuss some arguments in favour of the proposal that the quantum correlations contained in the pure state-vector evolving according to Schoedinger equation can be eliminated by the action of multiply connected wormholes during measurement. We devise a procedure to obtain a proper master equation which governes the changes of the reduced density matrix of matter fields interacting with doubly connected wormholes. It is shown that this master equation predicts an appropriate damping of the off-diagonal correlations contained in the state vector.
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