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Weak Values and Quantum Properties

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1 Published in 2019 at "Foundations of Physics"

DOI: 10.1007/s10701-019-00245-3

Abstract: We investigate in this work the meaning of weak values through the prism of property ascription in quantum systems. Indeed, the weak measurements framework contains only ingredients of the standard quantum formalism, and as such… read more here.

Keywords: property ascription; quantum; weak measurements; quantum properties ... See more keywords

Anomalous Weak Values are Caused by Disturbance

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3 Published in 2022 at "Foundations of Physics"

DOI: 10.1007/s10701-021-00534-w

Abstract: In combination with post-selection, weak measurements can lead to surprising results known as anomalous weak values. These lie outside the bounds of the spectrum of the relevant observable, as in the canonical example of measuring… read more here.

Keywords: anomalous weak; caused disturbance; weak values; values caused ... See more keywords

Weak value controversy

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0 Published in 2017 at "Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences"

DOI: 10.1098/rsta.2016.0395

Abstract: Recent controversy regarding the meaning and usefulness of weak values is reviewed. It is argued that in spite of recent statistical arguments by Ferrie and Combes, experiments with anomalous weak values provide useful amplification techniques… read more here.

Keywords: weak values; value controversy; weak value;

Reply to "Comment on `Null weak values and the past of a quantum particle"'

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1 Published in 2018 at "Physical Review A"

DOI: 10.1103/physreva.97.046103

Abstract: We discuss the preceding Comment and conclude that the arguments given there against the relevance of null weak values as representing the absence of a system property are not compelling. We give an example in… read more here.

Keywords: comment null; null weak; reply comment; weak values ... See more keywords

Experimental extraction of nonlocal weak values for demonstrating the failure of a product rule.

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1 Published in 2020 at "Optics letters"

DOI: 10.1364/ol.375448

Abstract: We experimentally demonstrate an alternative method for measuring nonlocal weak values in linear optics, avoiding the use of second-order interaction. The method is based on the concept of modular values. The paths of two photons,… read more here.

Keywords: experimental extraction; optics; failure product; weak values ... See more keywords