Multi-pass classical vs. quantum strategies in lossy phase estimation

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Demkowicz-Dobrzanski, Rafal
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Abstract
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The use of classical multiple-pass approach for phase estimation which mimics the behavior of the N00N states, is compared with quantum techniques. It is shown that in the presence of losses its performance is significantly worse than the one of the optimal quantum strategy.
Comment: 5 pages, 3 figures
Keywords
Quantum Physics
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