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- Publisher Website: 10.1103/PhysRevLett.109.020404
- Scopus: eid_2-s2.0-84863712568
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Article: Entropic test of quantum contextuality
| Title | Entropic test of quantum contextuality |
|---|---|
| Authors | |
| Issue Date | 2012 |
| Citation | Physical Review Letters, 2012, v. 109, n. 2, article no. 020404 How to Cite? |
| Abstract | We study the contextuality of a three-level quantum system using classical conditional entropy of measurement outcomes. First, we analytically construct the minimal configuration of measurements required to reveal contextuality. Next, an entropic contextual inequality is formulated, analogous to the entropic Bell inequalities derived by Braunstein and Caves, that must be satisfied by all noncontextual theories. We find optimal measurements for violation of this inequality. The approach is easily extendable to higher dimensional quantum systems and more measurements. Our theoretical findings can be verified in the laboratory with current technology. © 2012 American Physical Society. |
| Persistent Identifier | http://hdl.handle.net/10722/276926 |
| ISSN | 2023 Impact Factor: 8.1 2023 SCImago Journal Rankings: 3.040 |
| ISI Accession Number ID |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Kurzyński, P. | - |
| dc.contributor.author | Ramanathan, R. | - |
| dc.contributor.author | Kaszlikowski, D. | - |
| dc.date.accessioned | 2019-09-18T08:35:04Z | - |
| dc.date.available | 2019-09-18T08:35:04Z | - |
| dc.date.issued | 2012 | - |
| dc.identifier.citation | Physical Review Letters, 2012, v. 109, n. 2, article no. 020404 | - |
| dc.identifier.issn | 0031-9007 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/276926 | - |
| dc.description.abstract | We study the contextuality of a three-level quantum system using classical conditional entropy of measurement outcomes. First, we analytically construct the minimal configuration of measurements required to reveal contextuality. Next, an entropic contextual inequality is formulated, analogous to the entropic Bell inequalities derived by Braunstein and Caves, that must be satisfied by all noncontextual theories. We find optimal measurements for violation of this inequality. The approach is easily extendable to higher dimensional quantum systems and more measurements. Our theoretical findings can be verified in the laboratory with current technology. © 2012 American Physical Society. | - |
| dc.language | eng | - |
| dc.relation.ispartof | Physical Review Letters | - |
| dc.title | Entropic test of quantum contextuality | - |
| dc.type | Article | - |
| dc.description.nature | link_to_subscribed_fulltext | - |
| dc.identifier.doi | 10.1103/PhysRevLett.109.020404 | - |
| dc.identifier.scopus | eid_2-s2.0-84863712568 | - |
| dc.identifier.volume | 109 | - |
| dc.identifier.issue | 2 | - |
| dc.identifier.spage | article no. 020404 | - |
| dc.identifier.epage | article no. 020404 | - |
| dc.identifier.eissn | 1079-7114 | - |
| dc.identifier.isi | WOS:000306325900001 | - |
| dc.identifier.issnl | 0031-9007 | - |