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One particle as a quantum detector

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Il Nuovo Cimento B (1971-1996)

Summary

The possibility that one particle can act as a quantum detector is investigated. If the states of the particle after an interaction with an object system are described by coherent states, then the particle can play the role of a detector under certain conditions; these conditions depend on the object system. The statistical operator of the total system (one-particle detector+object system) approaches and becomes equivalent to its mixed-state part with respect to almost all observables.

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  1. Department of Physics, University of the Ryukyus, 903-01, Okinawa, Japan

    K. Kakazu

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  1. K. Kakazu
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Kakazu, K. One particle as a quantum detector. Nuov Cim B 107, 503–512 (1992). https://doi.org/10.1007/BF02723627

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  • DOI: https://doi.org/10.1007/BF02723627

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