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A method for direct observation of quantum tunneling in a single molecule

Anatoly Yu. Smirnov
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Abstract

An application of impedance measurement technique (IMT) for a detection of quantum tunneling in molecular structures is investigated. A charged particle which tunnels in a two-well potential is electrically coupled to a high-quality superconducting LC-circuit(tank) that makes possible a measurement of the electric susceptibility of the molecule at the resonant frequency of the tank. The real part of this susceptibility bears information about the tunneling rate through a measurable parameter - a phase angle between the tank voltage and a bias current applied to the tank. It is shown that the present approach is highly sensitive and allows the monitoring of the tunnel motion of charged nuclei in a single molecule.

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Anatoly Yu. Smirnov. 2004-01-21. A method for direct observation of quantum tunneling in a single molecule. https://arxiv.org/abs/cond-mat/0401399

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