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arXiv · cond-mat/0702068

Measurement of energy eigenstates by a slow detector

I. Martin·W. H. Zurek
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Abstract

We propose a method for a weak continuous measurement of the energy eigenstates of a fast quantum system by means of a "slow" detector. Such a detector is only sensitive to slowly-changing variables, e. g. energy, while its back-action can be limited solely to decoherence of the eigenstate superpositions. We apply this scheme to the problem of detection of quantum jumps between energy eigenstates in a harmonic oscillator.

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I. Martin, W. H. Zurek. 2007-02-04. Measurement of energy eigenstates by a slow detector. https://doi.org/10.1103/physrevlett.98.120401

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