On the detection of the finite frequency current fluctuations

Details On the detection of the finite frequency current fluctuations On the detection of the finite frequency current fluctuations

2008-02-29

arxiv.org/abs/0803.0020v1

Pisma ZhETF v.65, pp.280-284 (1997) [JETP Lett. 65, 295 (1997)]

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

It is shown that zero-point fluctuations of current at a given frequency are not measurable in a natural set-up. Asymmetric sp

Scientific paper

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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