Dynamical encircling exceptional point in largely detuned multimode optomechanical system

Abstract

Dynamical encircling exceptional point(EP) shows a number of intriguing physical phenomena and its potential applications. To enrich the manipulations of optical systems in experiment, here, we study the dynamical encircling EP, i.e. state transfer process, in largely detuned multimode optomechanical system. The process of state transfer has been investigated with different factors about the location of start point, the orientation and the initial state of the trajectories around the EP in parameter space. Results show that the nonreciprocal and the chiral topological energy transfer between two optical modes are performed successfully by tuning the effective optomechanical coupling in the multimode system with large detuning. Moreover, the factor of evolution speed about system parameters is also discussed. Our work demonstrates the fundamental physics around EP in large detuning domain of multimode optomechanical system and provides an alternative for manipulating of optical modes in non-hermitian system.

9 pages,7 figures

References in corpus (6)

• PT-Symmetric Phonon Laser
• What is- and what is not- Electromagnetically-Induced-Transparency in Whispering-Gallery-Microcavities
• $\mathcal{P}\mathcal{T}$-Symmetry-Breaking Chaos in Optomechanics
• Dynamically encircling exceptional points: Exact evolution and polarization state conversion
• Exceptional Points and Asymmetric Mode Switching in Plasmonic Waveguides
• Tunable partial polarization beam splitter and optomechanically induced Faraday effect