On the detection of finite-frequency current fluctuations
We consider a measurement of finite-frequency current fluctuations, using a resonance circuit as a model for the detector. We arrive at an expression for the measurable response in terms of the current-current correlators which differs from the standard (symmetrized) formula. The possibility of detection of vacuum fluctuations is discussed.
PACS numbers05.40.+j 07.50.Hp 72.70.+m
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