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Prog. Theor. Phys. Vol. 86 No. 4 (1991) pp. 943-958

[ Full Text PDF : FREE ACCESS (694K) ]

One-Particle Detectors with SU(1, 1) Coherent States in Quantum Measurement

Kiyotaka Kakazu and Akihiko Ogawa

Department of Physics, University of the Ryukyus, Okinawa 903-01

(Received April 22, 1991)

Abstract:

The generalized coherent states based on SU(1, 1) are applied to quantum-measuring processes, in which each detector consists of a single particle. Differing from the Glauber coherent states, possible interactions are quite restricted. New definitions of the classical limit and classical operators are presented, where any polynomial of the position and momentum operators becomes classical. Although quantum interference itself becomes very large as the time after the interaction is increased, the statistical operator approaches its mixed-state part in a relative sense.


URL : http://ptp.ipap.jp/link?PTP/86/943/
DOI : 10.1143/PTP.86.943

[ Full Text PDF : FREE ACCESS (694K) ] Citation:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 87 No. 1 (1992) pp. 61-76 :
    The Wigner-Araki-Yanase Theorem and Its Extension in Quantam Measurement with Generalized Coherent States
    Shoju Kudaka and Kiyotaka Kakazu

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