A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Measuring the canonical phase with phase-space measurements
Tekijät: Pellonpaa JP, Schultz J
Kustantaja: AMER PHYSICAL SOC
Julkaisuvuosi: 2013
Journal: Physical Review A
Tietokannassa oleva lehden nimi: PHYSICAL REVIEW A
Lehden akronyymi: PHYS REV A
Artikkelin numero: ARTN 012121
Numero sarjassa: 1
Vuosikerta: 88
Numero: 1
Sivujen määrä: 7
ISSN: 1050-2947
DOI: https://doi.org/10.1103/PhysRevA.88.012121
Tiivistelmä
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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