Linear optical quantum metrology with single photons: Experimental errors, resource counting, and quantum Cramér-Rao bounds

Olson, JP; Motes, KR; Birchall, PM; Studer, NM; Laborde, M; Moulder, T; Rohde, PP; Dowling, JP

Linear optical quantum metrology with single photons: Experimental errors, resource counting, and quantum Cramér-Rao bounds

Olson, JP Motes, KR Birchall, PM Studer, NM Laborde, M Moulder, T Rohde, PP

Dowling, JP

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Publication Type:: Journal Article
Citation:: Physical Review A, 2017, 96 (1)
Issue Date:: 2017-07-10

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Field	Value	Language
dc.contributor.author	Olson, JP	en_US
dc.contributor.author	Motes, KR	en_US
dc.contributor.author	Birchall, PM	en_US
dc.contributor.author	Studer, NM	en_US
dc.contributor.author	Laborde, M	en_US
dc.contributor.author	Moulder, T	en_US
dc.contributor.author	Rohde, PP https://orcid.org/0000-0002-5814-7289	en_US
dc.contributor.author	Dowling, JP	en_US
dc.date.issued	2017-07-10	en_US
dc.identifier.citation	Physical Review A, 2017, 96 (1)	en_US
dc.identifier.issn	2469-9926	en_US
dc.identifier.uri	http://hdl.handle.net/10453/125032
dc.description.abstract	© 2017 American Physical Society. Quantum number-path entanglement is a resource for supersensitive quantum metrology and in particular provides for sub-shot-noise or even Heisenberg-limited sensitivity. However, such number-path entanglement is thought to have been resource intensive to create in the first place, typically requiring either very strong nonlinearities or nondeterministic preparation schemes with feedforward, which are difficult to implement. Recently [K. R. Motes, Phys. Rev. Lett. 114, 170802 (2015)PRLTAO0031-900710.1103/PhysRevLett.114.170802], it was shown that number-path entanglement from a BosonSampling inspired interferometer can be used to beat the shot-noise limit. In this paper we compare and contrast different interferometric schemes, discuss resource counting, calculate exact quantum Cramér-Rao bounds, and study details of experimental errors.	en_US
dc.relation.ispartof	Physical Review A	en_US
dc.relation.isbasedon	10.1103/PhysRevA.96.013810	en_US
dc.subject.classification	General Physics	en_US
dc.title	Linear optical quantum metrology with single photons: Experimental errors, resource counting, and quantum Cramér-Rao bounds	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	96	en_US
utslib.for	0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics	en_US
utslib.for	01 Mathematical Sciences	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	03 Chemical Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - QSI - Centre for Quantum Software and Information
utslib.copyright.status	open_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	96	en_US

Abstract:

© 2017 American Physical Society. Quantum number-path entanglement is a resource for supersensitive quantum metrology and in particular provides for sub-shot-noise or even Heisenberg-limited sensitivity. However, such number-path entanglement is thought to have been resource intensive to create in the first place, typically requiring either very strong nonlinearities or nondeterministic preparation schemes with feedforward, which are difficult to implement. Recently [K. R. Motes, Phys. Rev. Lett. 114, 170802 (2015)PRLTAO0031-900710.1103/PhysRevLett.114.170802], it was shown that number-path entanglement from a BosonSampling inspired interferometer can be used to beat the shot-noise limit. In this paper we compare and contrast different interferometric schemes, discuss resource counting, calculate exact quantum Cramér-Rao bounds, and study details of experimental errors.

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http://hdl.handle.net/10453/125032