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Paper detail

Quantum metrology with entangled coherent states

We present an improved phase estimation scheme employing entangled coherent states and demon- strate that the states give the smallest variance in the phase parameter in comparison to NOON, BAT and "optimal" states under perfect and lossy conditions. As these advantages emerge for very modest particle numbers, the optical version of entangled coherent state metrology is achievable with current technology.

preprint2011arXivOpen access
Jaewoo JooWilliam J. MunroTimothy P. Spiller
quant-ph
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Jaewoo JooWilliam J. MunroTimothy P. Spiller

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