Experimental optical phase measurement approaching the exact Heisenberg limit

Measurements of an unknown optical phase have not yet been performed with the ultimate precision, i.e. saturating the Heisenberg limit. Here, Daryanoosh et al. demonstrate this with a precision within 4% of the Heisenberg limit by combining photonic entanglement and multiple passes.

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Detalles Bibliográficos
Autores principales: Shakib Daryanoosh, Sergei Slussarenko, Dominic W. Berry, Howard M. Wiseman, Geoff J. Pryde
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2018
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Acceso en línea:https://doaj.org/article/cc3e69b9a9d74d7e82dc7c9b5b2e31f3
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Sumario:Measurements of an unknown optical phase have not yet been performed with the ultimate precision, i.e. saturating the Heisenberg limit. Here, Daryanoosh et al. demonstrate this with a precision within 4% of the Heisenberg limit by combining photonic entanglement and multiple passes.