期刊
PHYSICAL REVIEW A
卷 91, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.91.012301
关键词
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资金
- ERC-Advanced SouL-Man [321122]
- EU collaborative Projects TherMiQ [618074]
- EU-IP-SIQS [600645]
- Italian MIUR via PRIN Project [2010LLKJBX]
- SNS-Project Non-equilibrium Dynamics of One-dimensional Quantum Systems
- European Research Council (ERC) [321122] Funding Source: European Research Council (ERC)
Spontaneous synchronization is a fundamental phenomenon, important in many theoretical studies and applications. Recently, this effect has been analyzed and observed in a number of physical systems close to the quantum-mechanical regime. In this work we propose mutual information as a useful order parameter which can capture the emergence of synchronization in very different contexts, ranging from semiclassical to intrinsically quantum-mechanical systems. Specifically, we first study the synchronization of two coupled Van der Pol oscillators in both classical and quantum regimes and later we consider the synchronization of two qubits inside two coupled optical cavities. In all these contexts, we find that mutual information can be used as an appropriate figure of merit for determining the synchronization phases independently of the specific details of the system.
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