No time asymmetry from quantum mechanics
- 28 June 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 70 (26) , 4034-4037
- https://doi.org/10.1103/physrevlett.70.4034
Abstract
With CPT-invariant initial conditions that commute with CPT-invariant final conditions, the respective probabilities (when defined) of a set of histories and its CPT reverse are equal, giving a CPT-symmetric universe. This leads me to question whether the asymmetry of the Gell-Mann–Hartle decoherence functional for ordinary quantum mechanics should be interpreted as an asymmetry of time.Keywords
All Related Versions
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