Bollinger, J.
, Itano, W.
, Wineland, D.
and Heinzen, D.
(1996),
Optimal Frequency Measurements with Maximally Correlated States, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=104859
(Accessed April 19, 2024)
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Optimal Frequency Measurements with Maximally Correlated States
Published
Author(s)
, , , D J. Heinzen
Abstract
We show how maximally correlated states of N two-level particles can be used in spectroscopy to yield a frequency uncertainty equal to (NT)-1, where T is the time of a single measurement. From the time-energy uncertainty relation we show that this is the best precision possible. We rephrase these results in the language of particle interferometry and obtain a state and detection operator which can be used to achieve a phase uncertainty exactly equal to the 1/N Heisenberg limit, where N is the number of particles used in the measurement.Citation
Physical Review Letters
Volume
54
Pub Type
Journals
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Citation
Created December 1, 1996, Updated February 19, 2017