Published online by Cambridge University Press: 01 April 2022
The purpose of this paper is to solve a serious problem for the projection postulate involving the time-energy uncertainty relation. The problem was recently raised by Teller, who believes that the problem is insoluble and, consequently, that the projection postulate should no longer be regarded as a serious focus for interpretive investigation.
I am indebted to Paul Teller and to Allen Stairs for several valuable suggestions. I would also like to thank two of my students, Craig Hansen and Ben Schumacher, for helpful comments on an earlier version of this paper.