A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
The Pegg-Barnett formalism and covariant phase observables
Tekijät: Lahti P, Pellonpaa JP
Kustantaja: ROYAL SWEDISH ACAD SCIENCES
Julkaisuvuosi: 2002
Lehti: Physica Scripta
Tietokannassa oleva lehden nimi: PHYSICA SCRIPTA
Lehden akronyymi: PHYS SCRIPTA
Vuosikerta: 66
Numero: 1
Aloitussivu: 66
Lopetussivu: 70
Sivujen määrä: 5
ISSN: 0031-8949
DOI: https://doi.org/10.1238/Physica.Regular.066a00066
Tiivistelmä
We compare the Pegg-Barnett (PB) formalism with the covariant phase observable approach to the problem of quantum phase and show that PB-formalism gives essentially the same results as the canonical (covariant) phase observable. We also show that PB-formalism can be extended to cover all covariant phase observables including the covariant phase observable arising from the angle margin of the Husimi Q-function.
We compare the Pegg-Barnett (PB) formalism with the covariant phase observable approach to the problem of quantum phase and show that PB-formalism gives essentially the same results as the canonical (covariant) phase observable. We also show that PB-formalism can be extended to cover all covariant phase observables including the covariant phase observable arising from the angle margin of the Husimi Q-function.
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