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Quantum Algorithms

Anomalous weak values are caused by disturbance

arXiv

Authors: Asger C. Ipsen

Year

2021

Paper ID

62472

Status

Preprint

Abstract Read

~2 min

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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 the spin of an electron (along some axis) to be 100. We argue that the disturbance caused by the weak measurement, while small, is sufficient to significantly affect the measurement result, and that this is the most reasonable explanation of anomalous weak values.

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In combination with post-selection, weak measurements can lead to surprising results known as anomalous weak values.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2108.04733 [2] arXiv https://arxiv.org/abs/2108.04733 [3] Publisher https://arxiv.org/abs/2108.04733

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