Estimation of a quantum interaction parameter using weak measurements: Theory and experiment

We investigate the estimation of a small interaction parameter from the outcomes of weak quantum measurements implemented by the interaction. The relation of weak values and sensitivity is explained and the different contributions of postselected results are identified using experimental data. The r...

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Библиографические подробности
Главные авторы: Hofmann, H, Goggin, M, Almeida, M, Barbieri, M
Формат: Journal article
Язык:English
Опубликовано: 2012
Описание
Итог:We investigate the estimation of a small interaction parameter from the outcomes of weak quantum measurements implemented by the interaction. The relation of weak values and sensitivity is explained and the different contributions of postselected results are identified using experimental data. The results show how weak values can be used to control the distribution of input state sensitivity between different postselected outcomes. © 2012 American Physical Society.