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Abstract: We extend the idea of weak measurements to the general case, provide acomplete treatment and obtain results for both the regime when the pre-selectedand post-selected states PPS are almost orthogonal and the regime when theyare exactly orthogonal. We surprisingly find that for a fixed interactionstrength, there may exist a maximum signal amplification and a correspondingoptimum overlap of PPS to achieve it. For weak measurements in the orthogonalregime, we find interesting quantities that play the same role that weak valuesplay in the non-orthogonal regime.



Author: Shengjun Wu, Yang Li

Source: https://arxiv.org/







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