Localized vibrational modes in waveguide quantum optomechanics with spontaneously broken PT symmetry

Abstract

We study theoretically two vibrating quantum emitters trapped near a one-dimensional waveguide and interacting with propagating photons. We demonstrate, that in the regime of strong optomechanical interaction the light-induced coupling of emitter vibrations can lead to formation of spatially localized vibration modes, exhibiting parity-time (PT ) symmetry breaking. These localized vibrations can be interpreted as topological defects in the quasiclassical energy spectrum.

5 pages, 5 figures

References in corpus (4)

• Making Sense of Non-Hermitian Hamiltonians
• Unconventional quantum sound-matter interactions in spin-optomechanical-crystal hybrid systems
• Chiral waveguide optomechanics: first order quantum phase transitions with ${\mathbb{Z}}_3$ symmetry breaking/
• Waveguide quantum optomechanics: parity-time phase transitions in ultrastrong coupling regime