On the detection of the finite frequency current fluctuations
G.B. Lesovik, R. Loosen
TL;DR
This paper investigates measuring finite-frequency current fluctuations with a resonance circuit detector, deriving a new response expression that differs from standard formulas and exploring the detection of vacuum fluctuations.
Contribution
It introduces a novel response formula for finite-frequency current fluctuation measurements using resonance circuits, highlighting differences from traditional symmetrized approaches.
Findings
Derived a new measurable response expression for current fluctuations
Identified differences from standard symmetrized formulas
Discussed the potential to detect vacuum fluctuations
Abstract
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.
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Taxonomy
TopicsMachine Fault Diagnosis Techniques · Neural Networks and Applications · Fault Detection and Control Systems