Volume 72, Number 5, December 2005
|Page(s)||685 - 690|
|Published online||28 October 2005|
Bell's jump process in discrete time
Perimeter Institute for Theoretical Physics - 31 Caroline Street North, Waterloo Ontario, N2L 2Y5, Canada
2 Mathematisches Institut, Eberhard-Karls-Unversität - Auf der Morgenstelle 10 72076 Tübingen, Germany
Accepted: 29 September 2005
The jump process introduced by J. S. Bell in 1986, for defining a quantum field theory without observers, presupposes that space is discrete whereas time is continuous. In this letter, our interest is to find an analogous process in discrete time. We argue that a genuine analog does not exist, but provide examples of processes in discrete time that could be used as a replacement.
PACS: 02.50.Ga – Markov processes / 03.65.Ta – Foundations of quantum mechanics; measurement theory
© EDP Sciences, 2005
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