Linear quantum measurements

D. V. Averin

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arXiv · cond-mat/0301524

Linear quantum measurements

D. V. Averin

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Abstract

Linear response theory describes quantum measurement with an arbitrary detector weakly coupled to a measured system. This description produces generic quantitative relation characterizing the detector that is analogous to the fluctuation-dissipation theorem for equilibrium systems. The detector characteristic obtained in this way shows how efficient the trade-off is between the back-action dephasing and information acquisition by the detector.

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D. V. Averin. 2003-01-27. Linear quantum measurements. https://arxiv.org/abs/cond-mat/0301524

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