A1 Refereed original research article in a scientific journal
Measuring the canonical phase with phase-space measurements
Authors: Pellonpaa JP, Schultz J
Publisher: AMER PHYSICAL SOC
Publication year: 2013
Journal: Physical Review A
Journal name in source: PHYSICAL REVIEW A
Journal acronym: PHYS REV A
Article number: ARTN 012121
Number in series: 1
Volume: 88
Issue: 1
Number of pages: 7
ISSN: 1050-2947
DOI: https://doi.org/10.1103/PhysRevA.88.012121(external)
Abstract
We study measurements of single-mode phase observables with emphasis on the canonical phase. We focus on the class of phase-shift covariant phase-space observables, which then yield the phase observables as the angle margins after integrating over the radial part. We consider the possibility of measuring such observables by using a double homodyne detector and its modification. We show that, in principle, the canonical phase distribution of the signal state can be measured via double homodyne detection by first processing the state using a two-mode unitary channel.
We study measurements of single-mode phase observables with emphasis on the canonical phase. We focus on the class of phase-shift covariant phase-space observables, which then yield the phase observables as the angle margins after integrating over the radial part. We consider the possibility of measuring such observables by using a double homodyne detector and its modification. We show that, in principle, the canonical phase distribution of the signal state can be measured via double homodyne detection by first processing the state using a two-mode unitary channel.
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