liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Necessary and Sufficient Conditions for an Extended Noncontextuality in a Broad Class of Quantum Mechanical Systems
University of Jyvaskyla, Finland.
Purdue University, IN 47907 USA.
Linköping University, Department of Electrical Engineering, Information Coding. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-1082-8325
2015 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 115, no 15, 150401- p.Article in journal (Refereed) Published
Abstract [en]

The notion of (non) contextuality pertains to sets of properties measured one subset (context) at a time. We extend this notion to include so-called inconsistently connected systems, in which the measurements of a given property in different contexts may have different distributions, due to contextual biases in experimental design or physical interactions (signaling): a system of measurements has a maximally noncontextual description if they can be imposed a joint distribution on in which the measurements of any one property in different contexts are equal to each other with the maximal probability allowed by their different distributions. We derive necessary and sufficient conditions for the existence of such a description in a broad class of systems including Klyachko-Can-Binicioglu-Shumvosky-type (KCBS), EPR-Bell-type, and Leggett-Garg-type systems. Because these conditions allow for inconsistent connectedness, they are applicable to real experiments. We illustrate this by analyzing an experiment by Lapkiewicz and colleagues aimed at testing contextuality in a KCBS-type system.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2015. Vol. 115, no 15, 150401- p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:liu:diva-122195DOI: 10.1103/PhysRevLett.115.150401ISI: 000362337200001OAI: diva2:865058

Funding Agencies|NSF [SES-1155956]; AFOSR [FA9550-14-1-0318]; A. von Humboldt Foundation; FQXi through the Silicon Valley Community Foundation

Available from: 2015-10-26 Created: 2015-10-23 Last updated: 2016-08-31

Open Access in DiVA

fulltext(345 kB)51 downloads
File information
File name FULLTEXT01.pdfFile size 345 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Larsson, Jan-Åke
By organisation
Information CodingFaculty of Science & Engineering
In the same journal
Physical Review Letters
Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 51 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 247 hits
ReferencesLink to record
Permanent link

Direct link