Degree of Quantumness in Quantum Synchronization

Eneriz, H.; Rossatto, D. Z.; Cárdenas López, F. A.; Solano Villanueva, Enrique Leónidas; Sanz Ruiz, Mikel

dc.contributor.author	Eneriz, H.
dc.contributor.author	Rossatto, D. Z.
dc.contributor.author	Cárdenas López, F. A.
dc.contributor.author	Solano Villanueva, Enrique Leónidas
dc.contributor.author	Sanz Ruiz, Mikel
dc.date.accessioned	2020-03-26T09:42:28Z
dc.date.available	2020-03-26T09:42:28Z
dc.date.issued	2019-12-27
dc.identifier.citation	Scientific Reports 9 : (2019) // Article ID 19933	es_ES
dc.identifier.issn	2045-2322
dc.identifier.uri	http://hdl.handle.net/10810/42354
dc.description.abstract	We introduce the concept of degree of quantumness in quantum synchronization, a measure of the quantum nature of synchronization in quantum systems. Following techniques from quantum information, we propose the number of non-commuting observables that synchronize as a measure of quantumness. This figure of merit is compatible with already existing synchronization measurements, and it captures different physical properties. We illustrate it in a quantum system consisting of two weakly interacting cavity-qubit systems, which are coupled via the exchange of bosonic excitations between the cavities. Moreover, we study the synchronization of the expectation values of the Pauli operators and we propose a feasible superconducting circuit setup. Finally, we discuss the degree of quantumness in the synchronization between two quantum van der Pol oscillators.	es_ES
dc.description.sponsorship	The authors thank L. Garcia-Alvarez, I. L. Egusquiza, R. Zambrini and F. Deppe for fruitful discussions. D.Z.R. acknowledges support from Sao Paulo Research Foundation (FAPESP) Grants No. 2013/23512-7 and No. 2014/24576-1. While M.S. and E.S. are grateful for the funding from Spanish MCIU/AEI/FEDER (PGC2018-095113-B-I00), Basque Government Grant No. IT986-16, the projects QMiCS (820505) and OpenSuperQ (820363) of the EU Flagship on Quantum Technologies and the EU FET Open Grant Quromorphic (828826). This work is supported by the U.S. Department of Energy, Office of Science, Office of Advanced Scientific Computing Research (ASCR) quantum algorithm teams program, under field work proposal number ERKJ333.	es_ES
dc.language.iso	eng	es_ES
dc.publisher	Nature	es_ES
dc.rights	info:eu-repo/semantics/openAccess	es_ES
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/es/	*
dc.title	Degree of Quantumness in Quantum Synchronization	es_ES
dc.type	info:eu-repo/semantics/article	es_ES
dc.rights.holder	This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.	es_ES
dc.rights.holder	Atribución 3.0 España	*
dc.relation.publisherversion	https://www.nature.com/articles/s41598-019-56468-x	es_ES
dc.identifier.doi	10.1038/s41598-019-56468-x
dc.departamentoes	Química física	es_ES
dc.departamentoeu	Kimika fisikoa	es_ES

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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

Except where otherwise noted, this item's license is described as This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.