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arxiv: 1111.1088 · v2 · pith:Y5SITCGGnew · submitted 2011-11-04 · 🪐 quant-ph

Discriminating between the von Neumann and L\"uders reduction rule

classification 🪐 quant-ph
keywords ensembleneumannreductionruleudersunknownapparatusapplies
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Given an ensemble of systems in an unknown state, as well as an observable $\hat A$ and a physical apparatus which performs a measurement of $\hat A$ on the ensemble, whose detailed working is unknown ('black box'), how can one test whether the L\"uders or von Neumann reduction rule applies?

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