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arXiv · 0909.4343

Tunneling without tunneling: wavefunction reduction in a mesoscopic qubit

James A. Nesteroff·Dmitri V. Averin
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Abstract

The transformation cycle and associated inequality are suggested for the basic demonstration of the wavefunction reduction in a mesoscopic qubit in measurements with quantum-limited detectors. Violation of the inequality would show directly that the qubit state changes in a way dictated by the probabilistic nature of the wavefunction and inconsistent with the dynamics of the Schr\"{o}dinger equation: the qubit tunnels through an infinitely large barrier. Estimates show that the transformation cycle is within the reach of current experiments with superconducting qubits.

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James A. Nesteroff, Dmitri V. Averin. 2009-09-24. Tunneling without tunneling: wavefunction reduction in a mesoscopic qubit. https://doi.org/10.1088/0031-8949%2F2009%2Ft137%2F014002

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