Quantum measurements and supertasks
Author: Bokulich A.
Source: International Studies in the Philosophy of Science, Volume 17, Number 2, July 2003 , pp. 127-136(10)
Abstract:This article addresses the question whether supertasks are possible within the context of non-relativistic quantum mechanics. The supertask under consideration consists of performing an infinite number of quantum mechanical measurements in a finite amount of time. Recent arguments in the physics literature claim to show that continuous measurements, understood as N discrete measurements in the limit where N goes to infinity, are impossible. I show that there are certain kinds of measurements in quantum mechanics for which these arguments break down. This suggests that there is a new context in which quantum mechanics, in principle, permits the performance of a supertask.
Document Type: Research article
Publication date: 2003-07-01