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/lp/wiley/enhanced-quantum-synchronization-via-quantum-machine-learning-28Td0cmWUt
- Publisher
- Wiley
- Copyright
- © 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
- eISSN
- 2511-9044
- DOI
- 10.1002/qute.201800076
- Publisher site
- See Article on Publisher Site
Abstract
The quantum synchronization between a pair of two‐level systems inside two coupled cavities is studied. By using a digital–analog decomposition of the master equation that rules the system dynamics, it is shown that this approach leads to quantum synchronization between both two‐level systems. Moreover, in this digital–analog block decomposition, the fundamental elements of a quantum machine learning protocol can be identified, in which the agent and the environment (learning units) interact through a mediating system, namely, the register. If the algorithm can be additionally equipped with a classical feedback mechanism, which consists of projective measurements in the register, reinitialization of the register state, and local conditional operations on the agent and environment subspace, a powerful and flexible quantum machine learning protocol emerges. Indeed, numerical simulations show that this protocol enhances the synchronization process, even when every subsystem experiences different loss/decoherence mechanisms, and gives the flexibility to choose the synchronization state. Finally, an implementation is proposed, based on current technologies in superconducting circuits.
Journal
Advanced Quantum Technologies – Wiley
Published: Aug 1, 2019
Keywords: ; ;