Multiple-time states and multiple-time measurements in quantum mechanics

Y Aharonov, S Popescu, J Tollaksen, L Vaidman

Research output: Contribution to journalArticle (Academic Journal)

49 Citations (Scopus)

Abstract

We discuss experimental situations that consist of multiple preparation and measurement stages. This leads us to an alternative approach to quantum mechanics. In particular, we introduce the idea of multitime quantum states which are the appropriate tools for describing these experimental situations. We also describe multitime measurements and discuss their relation to multitime states. A consequence of our formalism is to put states and operators on an equal footing. Finally we discuss the implications of our approach to quantum mechanics for the problem of the flow of time.
Translated title of the contributionMultiple-time states and multiple-time measurements in quantum mechanics
Original languageEnglish
Article number052110
Pages (from-to)1-16
Number of pages16
JournalPhysical Review A: Atomic, Molecular and Optical Physics
Volume79
Issue number5
DOIs
Publication statusPublished - May 2009

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