论文标题
同步阶段作为子系统之间持续量子相关的指标
Synchronisation phase as an indicator of persistent quantum correlations between subsystems
论文作者
论文摘要
自发同步是一种在动态古典和量子系统中都可以发生的集体现象。在这里，我们分析了有助于生物启发系统中能量转移的振动的自发同步动力学。我们发现，随着振动器的固有频率被解剖，同步振动位移之间的恒定非零“同步阶段”的出现。这种相位差异来自局部模式在长期同步状态下的不对称参与。此外，我们研究了同步子系统之间的同步阶段，失谐和量子相关程度之间的关系，并发现同步阶段捕获了量子相关性如何持续超过动力学过程中的经典相关性。我们表明，我们的分析适用于各种自发同步开放量子系统。因此，我们的工作开辟了一个有希望的途径，以研究复杂的生物分子和纳米级化学系统中的非平凡量子现象。
Spontaneous synchronisation is a collective phenomenon that can occur in both dynamical classical and quantum systems. Here, we analyse the spontaneous synchronisation dynamics of vibrations assisting energy transfer in a bio-inspired system. We find the emergence of a constant non-zero `synchronisation phase' between synchronised vibrational displacements as the natural frequencies of the oscillators are detuned. This phase difference arises from the asymmetric participation of local modes in the long-lived synchronised state. Furthermore, we investigate the relationships between the synchronisation phase, detuning and the degree of quantum correlations between the synchronising subsystems and find that the synchronisation phase captures how quantum correlations persistently exceed classical correlations during the dynamics. We show that our analysis applies to a variety of spontaneously synchronising open quantum systems. Our work therefore opens up a promising avenue to investigate non-trivial quantum phenomena in complex biomolecular and nano-scale chemical systems.
