Quantum Zeno effect and parametric resonance in mesoscopic physics

Details Quantum Zeno effect and parametric resonance in mesoscopic physics Quantum Zeno effect and parametric resonance in mesoscopic physics

1998-07-23

arxiv.org/abs/cond-mat/9807317v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.81.5896

As a realization of the quantum Zeno effect, we consider electron tunneling between two quantum dots with one of the dots coupled to a quantum point contact detector. The coupling leads to decoherence and to the suppression of tunneling. When the detector is driven with an ac voltage, a parametric resonance occurs which strongly counteracts decoherence. We propose a novel experiment with which it is possible to observe both the quantum Zeno effect and the parametric resonance in electric transport.

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