Interferometric visibility and coherence

Biswas, T; Díaz, MG; Winter, A

Interferometric visibility and coherence

Biswas, T Díaz, MG Winter, A

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Publication Type:: Journal Article
Citation:: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2017, 473 (2203)
Issue Date:: 2017-07-01

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Field	Value	Language
dc.contributor.author	Biswas, T	en_US
dc.contributor.author	Díaz, MG	en_US
dc.contributor.author	Winter, A https://orcid.org/0000-0001-6344-4870	en_US
dc.date.issued	2017-07-01	en_US
dc.identifier.citation	Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2017, 473 (2203)	en_US
dc.identifier.issn	1364-5021	en_US
dc.identifier.uri	http://hdl.handle.net/10453/127397
dc.description.abstract	© 2017 The Author(s) Published by the Royal Society. Recently, the basic concept of quantum coherence (or superposition) has gained a lot of renewed attention, after Baumgratz et al. (Phys. Rev. Lett. 113, 140401. (doi:10.1103/PhysRevLett.113.140401)), following Åberg (http://arxiv.org/abs/quant-ph/0612146), have proposed a resource theoretic approach to quantify it. This has resulted in a large number of papers and preprints exploring various coherence monotones, and debating possible forms for the resource theory. Here, we take the view that the operational foundation of coherence in a state, be it quantum or otherwise wave mechanical, lies in the observation of interference effects. Our approach here is to consider an idealized multi-path interferometer, with a suitable detector, in such a way that the visibility of the interference pattern provides a quantitative expression of the amount of coherence in a given probe state. We present a general framework of deriving coherence measures from visibility, and demonstrate it by analysing several concrete visibility parameters, recovering some known coherence measures and obtaining some new ones.	en_US
dc.relation.ispartof	Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences	en_US
dc.relation.isbasedon	10.1098/rspa.2017.0170	en_US
dc.title	Interferometric visibility and coherence	en_US
dc.type	Journal Article
utslib.citation.volume	2203	en_US
utslib.citation.volume	473	en_US
utslib.for	0205 Optical Physics	en_US
utslib.for	01 Mathematical Sciences	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	09 Engineering	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
utslib.copyright.status	closed_access
pubs.issue	2203	en_US
pubs.publication-status	Published	en_US
pubs.volume	473	en_US

Abstract:

© 2017 The Author(s) Published by the Royal Society. Recently, the basic concept of quantum coherence (or superposition) has gained a lot of renewed attention, after Baumgratz et al. (Phys. Rev. Lett. 113, 140401. (doi:10.1103/PhysRevLett.113.140401)), following Åberg (http://arxiv.org/abs/quant-ph/0612146), have proposed a resource theoretic approach to quantify it. This has resulted in a large number of papers and preprints exploring various coherence monotones, and debating possible forms for the resource theory. Here, we take the view that the operational foundation of coherence in a state, be it quantum or otherwise wave mechanical, lies in the observation of interference effects. Our approach here is to consider an idealized multi-path interferometer, with a suitable detector, in such a way that the visibility of the interference pattern provides a quantitative expression of the amount of coherence in a given probe state. We present a general framework of deriving coherence measures from visibility, and demonstrate it by analysing several concrete visibility parameters, recovering some known coherence measures and obtaining some new ones.

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http://hdl.handle.net/10453/127397