Abstract
It has recently been argued (Shimony, Erkenntnis 45:337, 1997) that time-symmetry does not hold for pre- and post-selected ensembles in quantum mechanics. That conclusion depends on what is meant by “time-symmetry” in relation to those types of ensembles. It is shown that on the conventional view of time-symmetry, pre- and post-selected ensembles are time-symmetric as was originally proposed.
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Miller, D.J. Pre- and Post-Selected Ensembles and Time-Symmetry in Quantum Mechanics. Int J Theor Phys 48, 1030–1043 (2009). https://doi.org/10.1007/s10773-008-9876-x
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DOI: https://doi.org/10.1007/s10773-008-9876-x