Synchronization in PT-symmetric optomechanical resonators
Abstract
Synchronization has great impacts in various fields such as self-clocking, communication, and neural networks. Here, we present a mechanism of synchronization for two mechanical modes in two coupled optomechanical resonators with a parity-time ( PT )-symmetric structure. It is shown that the degree of synchronization between the two far-off-resonant mechanical modes can be increased by decreasing the coupling strength between the two optomechanical resonators due to the large amplification of optomechanical interaction near the exceptional point. Additionally, when we consider the stochastic noises in the optomechanical resonators by working near the exceptional point, we find that more noises can enhance the degree of synchronization of the system under a particular parameter regime. Our results open up a new dimension of research for PT -symmetric systems and synchronization.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 06, 2021
- Source ID
- 10.1364/prj.423506
Entities
People
- Changlong Zhu
- Jing Zhang
- Lan Yang
- Yu-long Liu
- Yu-xi Liu
Organizations
- Army Research Office
- National Natural Science Foundation of China
- National Science Foundation
- Tsinghua National Laboratory for Information Science and Technology
- Tsinghua University
- Washington University in St. Louis