Motional Fock states for quantum-enhanced amplitude and phase measurements with trapped ions

Quantum metrology allows surpassing the standard quantum limit, but methods relying on squeezing require to know the orientation of the squeezed quadrature with respect to the signal. Here, instead, the authors propose a phase-insensitive Fock-state-based protocol, and demonstrate it using trapped i...

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Bibliographic Details
Main Authors: Fabian Wolf, Chunyan Shi, Jan C. Heip, Manuel Gessner, Luca Pezzè, Augusto Smerzi, Marius Schulte, Klemens Hammerer, Piet O. Schmidt
Format: article
Language:EN
Published: Nature Portfolio 2019
Subjects:
Q
Online Access:https://doaj.org/article/48e0f720f23647a0a4842b79b3e8e71f
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