Continuous measurement of intrinsic time by fermions
- 1 April 1989
- journal article
- editorial
- Published by IOP Publishing in Classical and Quantum Gravity
- Vol. 6 (4) , 561-566
- https://doi.org/10.1088/0264-9381/6/4/014
Abstract
It is demonstrated how classical properties of the intrinsic time variable in minisuperspace of quantum gravity would emerge in the sense of a continuous measurement process solely through interaction with fermionic degrees of freedom. This measurement is much less effective than that by bosons considered in a previous paper. Continuous measurement by fermions would not lead to classical properties for values of intrinsic time near the singularity of a Friedmann universe. It is argued that this result remains true for the full quantum theory of gravity.Keywords
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