No Time Asymmetry from Quantum Mechanics

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 {\it time} .

14 pages, Alberta-Thy-11-93

References in corpus (2)

• The Origin of Time Asymmetry
• The Reduction of the State Vector and Limitations on Measurement in the Quantum Mechanics of Closed Systems

Cited by in corpus (6)

• On the Consistent Histories Approach to Quantum Mechanics
• Arrow of time in a recollapsing quantum universe
• Near-Thermal Radiation in Detectors, Mirrors and Black Holes: A Stochastic Approach
• Linearly Positive Histories: Probabilities for a Robust Family of Sequences of Quantum Events
• Quantum Weak Measurements and Cosmology
• Probability, Arrow of Time and Decoherence