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Mirrors and the Direction of Time

Published online by Cambridge University Press:  01 April 2022

Frank Arntzenius*
Affiliation:
University of Southern California
*
Department of Philosophy, University of Southern California, Los Angeles, CA 90089-0451.

Abstract

The frequencies with which photons pass through half-silvered mirrors in the forward direction of time is always approximately 1/2, whereas the frequencies with which photons pass through mirrors in the backward direction in time can be highly time-dependent. I argue that whether one should infer from this time-asymmetric phenomenon that time has an objective direction will depend on one's interpretation of quantum mechanics.

Type
Symposium: New Work on Time's Arrow
Copyright
Copyright © Philosophy of Science Association 1997

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References

Arntzenius, F. (1995), “Indeterminism and the Direction of TimeTopoi 14: 6781.10.1007/BF00763480CrossRefGoogle Scholar
Bohm, D. and Hiley, B. J. (1993), The Undivided Universe. London: Routledge.Google Scholar
Shimony, A. (1991), “Desiderata for a modified Quantum Dynamics”, in Fine, A., Forbes, M., and Wessels, L. (eds.), PSA 1990, v. 2. East Lansing, MI: Philosophy of Science Association, pp. 4959.Google Scholar