The post-selected meter distribution decomposes into a Bayesian update and a negative diffusion term; a cosine meter can expose the intrinsic Ozawa-Hall uncertainty directly.
Why the "classical" explanation of weak values by Ferrie and Combes does not work: a comment on Phys. Rev. Lett. 113, 120404 (2014)
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In Phys. Rev. Lett. 113, 120404 (2014) [arXiv:1403.2362], Ferrie and Combes claim that weak values could be a statistical artifact caused by correlations between the disturbance and the post-selection condition imposed on the output. In this comment, we show that the disturbance caused by a weak measurement is sufficiently low to definitely rule out the model proposed by Ferrie and Combes.
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What meter interference can tell us about the statistics of weak measurements
The post-selected meter distribution decomposes into a Bayesian update and a negative diffusion term; a cosine meter can expose the intrinsic Ozawa-Hall uncertainty directly.