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Shot Noise of a Quantum Shuttle

Tomas Novotny·Andrea Donarini·Christian Flindt·Antti-Pekka Jauho
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Abstract

We formulate a theory for shot noise in quantum nanoelectromechanical systems. As a specific example, the theory is applied to a quantum shuttle, and the zero-frequency noise, measured by the Fano factor F, is computed. F reaches very low values (F~0.01) in the shuttling regime even in the quantum limit, confirming that shuttling is universally a low noise phenomenon. In approaching the semiclassical limit, the Fano factor shows a giant enhancement (F~100) at the shuttling threshold, consistent with predictions based on phase-space representations of the density matrix.

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Tomas Novotny, Andrea Donarini, Christian Flindt, Antti-Pekka Jauho. 2004-06-17. Shot Noise of a Quantum Shuttle. https://doi.org/10.1103/physrevlett.92.248302

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