J R Torgerson and L Mandel 1998 Phys. Scr. 1998 110 doi:10.1238/Physica.Topical.076a00110
Measuring the quantum phase of the E.M. field by interference as 
n
→ 0
J R Torgerson and L Mandel
Show affiliationsWe show that the measured probability distribution of the phase difference between two electromagnetic fields can be sharpened progressively as data involving more and more detected photons are discarded, and that the phase difference can be well-defined even when the mean photon number n → 0. In our operational phase theory the variance of the directly measured phase difference has no lower bound other than zero, and this is consistent with the experimental results.
- Dates
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Issue T76 (1998)
Received 30 June 1997
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Measuring the quantum phase of the E.M. field by interference as n → 0
J R Torgerson and L Mandel 1998 Phys. Scr. 1998 110
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