Quantum Synchronization and Dissipative Quantum Sensing

• DOI: 10.48550/arxiv.2405.10643
• Publication Date: 2024-05-17
• Authors: Gaurav M. Vaidya; Simon B. Jäger; Athreya Shankar
• Keywords: Quantum Physics; FOS: Physical sciences; Quantum Physics (quant-ph)

We study the phenomenon of quantum synchronization from viewpoint metrology. By interpreting self-sustained oscillators as dissipative sensors, we develop a framework to characterize several aspects synchronization. show that Fisher information (QFI) serves system-agnostic measure also carries clear operational meaning, viz., it quantifies precision with which amplitude weak synchronizing drive can be measured. extend our analysis many-body subjected multiple drives. how QFI matrix used determine optimal maximizes synchronization, and quantitatively differentiate responses induced by different Our work highlights connections between metrology, paving route towards finding technological applications