Original scientific paper

Canonical and non canonical quantum phase

Matteo G. A. Paris ; Dipartimento di Fisica "Alessandro Volta'' dell'Universitá di Pavia, via Bassi 6, I-27100 Pavia, ITALIA; Arbeitsgruppe 'Nichtklassische Strahlung' der Max-Planck-Gesellschaft, Rudower Chaussee 5, D-12489 Berlin, Germany

Abstract

The so-called canonical phase variable for the quantized harmonic oscillator is usually derived from quantum estimation theory or by a limiting procedure in the Fock space. In this paper we show that, using the full content of Born's statistical rule, it can be uniquely derived from correspondence principle, in the framework of elementary quantum mechanics. Difficulties of the Pegg-Barnett approach are illustrated and non canonical phase variables arising from Mandel's experiments are also discussed.

Keywords

Hrčak ID:

303507

URI

https://hrcak.srce.hr/303507

Publication date:

4.5.1997.

Article data in other languages: croatian

Visits: 449 *