| Full text | |
| Author(s): |
Eneriz, H.
[1, 2]
;
Rossatto, D. Z.
[3, 4]
;
Cardenas-Lopez, F. A.
[5, 6]
;
Solano, E.
[7, 1, 5, 6]
;
Sanz, M.
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Basque Country, UPV EHU, Dept Phys Chem, Apartado 644, Bilbao 48080 - Spain
[2] Univ Bordeaux, IOGS, CNRS, UMR 5298, LP2N, F-33400 Talence - France
[3] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP - Brazil
[4] Univ Estadual Paulista Unesp, Campus Expt Itapeva, BR-18409010 Itapeva, SP - Brazil
[5] Shanghai Univ, Int Ctr Quantum Artificial Intelligence Sci & Tec, Shanghai 200444 - Peoples R China
[6] Shanghai Univ, Phys Dept, Shanghai 200444 - Peoples R China
[7] Ikerbasque, Basque Fdn Sci, Maria Diaz de Haro 3, Bilbao 48013 - Spain
Total Affiliations: 7
|
| Document type: | Journal article |
| Source: | SCIENTIFIC REPORTS; v. 9, DEC 27 2019. |
| Web of Science Citations: | 0 |
| 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. (AU) | |
| FAPESP's process: | 13/23512-7 - Circuit Quantum Electrodynamics: Bistability and Squeezed States |
| Grantee: | Daniel Zini Rossatto |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 14/24576-1 - Ultrastrong and deep strong coupling regimes in circuit quantum electrodynamics |
| Grantee: | Daniel Zini Rossatto |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |