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Loss-tolerant quantum dense metrology with SU(1,1) interferometer

Liu, Yuhong; Li, Jiamin; Cui, Liang; Huo, Nan; Assad, Syed; Li, Xiaoying; Ou, Zhe Yu Jeff


Heisenberg uncertainty relation in quantum mechanics sets the limit on the measurement precision of non-commuting observables in one system, which prevents us from measuring them accurately at the same time. However, quantum entanglement between two systems allows us to infer through Einstein-Podolsky-Rosen correlations two conjugate observables with precision better than what is allowed by Heisenberg uncertainty relation. With the help of the newly developed SU(1,1) interferometer, we...[Show more]

CollectionsANU Research Publications
Date published: 2018-10-15
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.26.027705
Access Rights: Open Access


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