Phase measurements
- 1 May 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 47 (5) , 4537-4540
- https://doi.org/10.1103/physreva.47.4537
Abstract
We address the problem of identifying an operational prescription for quantum phase measurements. As is known, different experiments can lead to different measured phase operators. However, we show that ambiguities of interpretation can arise even if a single experiment, such as that of Noh, Fougères, and Mandel [Phys. Rev. Lett. 67, 1426 (1991)], is chosen as defining a phase measurement. We show by reference to a simple but fundamental example that it is not possible to deduce a unique phase difference from the measurements.Keywords
This publication has 12 references indexed in Scilit:
- Operational approach to the phase of a quantum fieldPhysical Review A, 1992
- Measurement of the quantum phase by photon countingPhysical Review Letters, 1991
- Quantum phase measurement: A system-theory perspectivePhysical Review A, 1991
- Erratum: ‘‘Ultimate quantum limits on phase measurement’’ [Phys. Rev. Lett. 62, 2377 (1989)]Physical Review Letters, 1989
- Ultimate quantum limits on phase measurementPhysical Review Letters, 1989
- Phase properties of the quantized single-mode electromagnetic fieldPhysical Review A, 1989
- On the Hermitian Optical Phase OperatorJournal of Modern Optics, 1989
- Unitary Phase Operator in Quantum MechanicsEurophysics Letters, 1988
- Phase in quantum opticsJournal of Physics A: General Physics, 1986
- The quantum theory of the emission and absorption of radiationProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1927