ORCID Profile
0000-0001-7270-4742
Current Organisation
University of Milan
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Publisher: Optica Publishing Group
Date: 24-09-2018
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 05-2020
Publisher: American Physical Society (APS)
Date: 11-12-2017
Publisher: MDPI
Date: 04-12-2019
Publisher: American Physical Society (APS)
Date: 11-09-2015
Publisher: IOP Publishing
Date: 14-03-2017
Publisher: IOP Publishing
Date: 11-2017
Publisher: American Physical Society (APS)
Date: 08-03-2016
Publisher: American Physical Society (APS)
Date: 19-02-2020
Publisher: Springer Science and Business Media LLC
Date: 14-04-2014
DOI: 10.1038/NCOMMS4532
Abstract: Phase estimation, at the heart of many quantum metrology and communication schemes, can be strongly affected by noise, whose litude may not be known, or might be subject to drift. Here we investigate the joint estimation of a phase shift and the litude of phase diffusion at the quantum limit. For several relevant instances, this multiparameter estimation problem can be effectively reshaped as a two-dimensional Hilbert space model, encompassing the description of an interferometer phase probed with relevant quantum states--split single-photons, coherent states or N00N states. For these cases, we obtain a trade-off bound on the statistical variances for the joint estimation of phase and phase diffusion, as well as optimum measurement schemes. We use this bound to quantify the effectiveness of an actual experimental set-up for joint parameter estimation for polarimetry. We conclude by discussing the form of the trade-off relations for more general states and measurements.
Publisher: American Physical Society (APS)
Date: 09-04-2012
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for MARCO G. GENONI.