{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,12,17]],"date-time":"2023-12-17T22:40:23Z","timestamp":1702852823043},"reference-count":60,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2023,7,26]],"date-time":"2023-07-26T00:00:00Z","timestamp":1690329600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001381","name":"National Research Foundation, Singapore","doi-asserted-by":"publisher","award":["NRF-CRP19-2017-01"],"id":[{"id":"10.13039\/501100001381","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Ministry of Education, Singapore"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"Quantum synchronization has emerged as a crucial phenomenon in quantum nonlinear dynamics with potential applications in quantum information processing. Multiple measures for quantifying quantum synchronization exist. However, there is currently no widely agreed metric that is universally adopted. In this paper, we propose using classical and quantum Fisher information (FI) as alternative metrics to detect and measure quantum synchronization. We establish the connection between FI and quantum synchronization, demonstrating that both classical and quantum FI can be deployed as more general indicators of quantum phase synchronization in some regimes where all other existing measures fail to provide reliable results. We show advantages in FI-based measures, especially in 2-to-1 synchronization. Furthermore, we analyze the impact of noise on the synchronization measures, revealing the robustness and susceptibility of each method in the presence of dissipation and decoherence. Our results open up new avenues for understanding and exploiting quantum synchronization.<\/jats:p>","DOI":"10.3390\/e25081116","type":"journal-article","created":{"date-parts":[[2023,7,27]],"date-time":"2023-07-27T05:27:46Z","timestamp":1690435666000},"page":"1116","source":"Crossref","is-referenced-by-count":0,"title":["Fisher Information as General Metrics of Quantum Synchronization"],"prefix":"10.3390","volume":"25","author":[{"ORCID":"http:\/\/orcid.org\/0000-0001-8768-1678","authenticated-orcid":false,"given":"Yuan","family":"Shen","sequence":"first","affiliation":[{"name":"School of Electrical and Electronic Engineering, Nanyang Technological University, Block S2.1, 50 Nanyang Avenue, Singapore 639798, Singapore"}]},{"given":"Hong Yi","family":"Soh","sequence":"additional","affiliation":[{"name":"National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616, Singapore"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-0879-0591","authenticated-orcid":false,"given":"Leong-Chuan","family":"Kwek","sequence":"additional","affiliation":[{"name":"School of Electrical and Electronic Engineering, Nanyang Technological University, Block S2.1, 50 Nanyang Avenue, Singapore 639798, Singapore"},{"name":"National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616, Singapore"},{"name":"Centre for Quantum Technologies, National University of Singapore, Singapore 117543, Singapore"},{"name":"MajuLab, CNRS-UNS-NUS-NTU International Joint Research Unit, UMI 3654, Singapore 117543, Singapore"}]},{"ORCID":"http:\/\/orcid.org\/0000-0003-2662-907X","authenticated-orcid":false,"given":"Weijun","family":"Fan","sequence":"additional","affiliation":[{"name":"School of Electrical and Electronic Engineering, Nanyang Technological University, Block S2.1, 50 Nanyang Avenue, Singapore 639798, Singapore"}]}],"member":"1968","published-online":{"date-parts":[[2023,7,26]]},"reference":[{"key":"ref_1","unstructured":"Strogatz, S.H. 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