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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:10030061  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Where is the quantum particle between two measurements
Speaker(s): Lev Vaidman
Abstract: The Wheeler delayed choice experiment, Elitzur-Vaidman interaction-free measurement, and Hosten-Kwiat counterfactual computation will be discussed to answer Bohr's forbidden question: "Where is a quantum particle while it is inside a Mach-Zehnder Interferometer?". I will argue that the naive application of Wheeler's approach fails to explain a weak trace left by the particle and that the two-state vector description is required.
Date: 16/03/2010 - 4:30 pm
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