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- Publisher Website: 10.1038/s41467-018-06255-5
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- PMID: 30315242
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Article: Steering is an essential feature of non-locality in quantum theory
Title | Steering is an essential feature of non-locality in quantum theory |
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Authors | |
Issue Date | 2018 |
Citation | Nature Communications, 2018, v. 9, n. 1, article no. 4244 How to Cite? |
Abstract | © 2018, The Author(s). A physical theory is called non-local when observers can produce instantaneous effects over distant systems. Non-local theories rely on two fundamental effects: local uncertainty relations and steering of physical states at a distance. In quantum mechanics, the former one dominates the other in a well-known class of non-local games known as XOR games. In particular, optimal quantum strategies for XOR games are completely determined by the uncertainty principle alone. This breakthrough result has yielded the fundamental open question whether optimal quantum strategies are always restricted by local uncertainty principles, with entanglement-based steering playing no role. In this work, we provide a negative answer to the question, showing that both steering and uncertainty relations play a fundamental role in determining optimal quantum strategies for non-local games. Our theoretical findings are supported by an experimental implementation with entangled photons. |
Persistent Identifier | http://hdl.handle.net/10722/276610 |
ISSN | 2023 Impact Factor: 14.7 2023 SCImago Journal Rankings: 4.887 |
PubMed Central ID | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Ramanathan, Ravishankar | - |
dc.contributor.author | Goyeneche, Dardo | - |
dc.contributor.author | Muhammad, Sadiq | - |
dc.contributor.author | Mironowicz, Piotr | - |
dc.contributor.author | Grünfeld, Marcus | - |
dc.contributor.author | Bourennane, Mohamed | - |
dc.contributor.author | Horodecki, Paweł | - |
dc.date.accessioned | 2019-09-18T08:34:07Z | - |
dc.date.available | 2019-09-18T08:34:07Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Nature Communications, 2018, v. 9, n. 1, article no. 4244 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | http://hdl.handle.net/10722/276610 | - |
dc.description.abstract | © 2018, The Author(s). A physical theory is called non-local when observers can produce instantaneous effects over distant systems. Non-local theories rely on two fundamental effects: local uncertainty relations and steering of physical states at a distance. In quantum mechanics, the former one dominates the other in a well-known class of non-local games known as XOR games. In particular, optimal quantum strategies for XOR games are completely determined by the uncertainty principle alone. This breakthrough result has yielded the fundamental open question whether optimal quantum strategies are always restricted by local uncertainty principles, with entanglement-based steering playing no role. In this work, we provide a negative answer to the question, showing that both steering and uncertainty relations play a fundamental role in determining optimal quantum strategies for non-local games. Our theoretical findings are supported by an experimental implementation with entangled photons. | - |
dc.language | eng | - |
dc.relation.ispartof | Nature Communications | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Steering is an essential feature of non-locality in quantum theory | - |
dc.type | Article | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1038/s41467-018-06255-5 | - |
dc.identifier.pmid | 30315242 | - |
dc.identifier.pmcid | PMC6185979 | - |
dc.identifier.scopus | eid_2-s2.0-85054889381 | - |
dc.identifier.volume | 9 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | article no. 4244 | - |
dc.identifier.epage | article no. 4244 | - |
dc.identifier.isi | WOS:000447123000020 | - |
dc.identifier.issnl | 2041-1723 | - |