The self-measurement of the universe and the concept of time in quantum cosmology
- 1 December 1990
- journal article
- Published by IOP Publishing in Classical and Quantum Gravity
- Vol. 7 (12), 2317-2329
- https://doi.org/10.1088/0264-9381/7/12/012
Abstract
The dynamics of the quantum universe under self-measurement is investigated in the framework of the path-integral approach to quantum theory of continuous measurements. The corresponding amplitude (propagator) is evaluated explicitly for a simple superspace model. It is shown that the picture of time evolution of the quantum universe naturally emerges as a result of its self-measurement. The Wheeler-DeWitt dynamics holds for small times when the effect of measurement can be neglected and time dependence disappears.Keywords
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