The Pegg-Barnett Formalism and Covariant Phase Observables

Details The Pegg-Barnett Formalism and Covariant Phase Observables The Pegg-Barnett Formalism and Covariant Phase Observables

2001-06-15

arxiv.org/abs/quant-ph/0106084v1

Phys. Scr. 66 (2002) 66-70

Physics

Quantum Physics

10 pages

Scientific paper

10.1238/Physica.Regular.066a0006

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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