Synchronisation phase as an indicator of persistent quantum correlations
between subsystems
- URL: http://arxiv.org/abs/2006.16209v1
- Date: Mon, 29 Jun 2020 17:21:32 GMT
- Title: Synchronisation phase as an indicator of persistent quantum correlations
between subsystems
- Authors: Stefan Siwiak-Jaszek, Thao P. Le and Alexandra Olaya-Castro
- Abstract summary: Spontaneous synchronisation is a collective phenomenon that can occur in both dynamical classical and quantum systems.
We show that our analysis applies to a variety of spontaneously synchronising open quantum systems.
- Score: 68.8204255655161
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: 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.
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