2018/06/19 by Jae Hoon Lee, Junho Suh, Hyojun Seok · 5 citations
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Classical mechanics #Coherent states #Dissipation #Force Microscopy Techniques and Applications #Mechanical and Optical Resonators #Momentum (technical analysis) #Nonclassical light #Optomechanics #Physics #Quantum #Quantum electrodynamics #Quantum limit #Quantum mechanics #Quantum optics #Squeezed coherent state #Vacuum state #Wigner distribution function #quant-ph
paper · pdf · doi:10.1103/physreva.98.043821
published in Physical Review A 98(4) (American Physical Society) · 5 pages, 3 figures
arxiv created 2018/06/19 · openalex created_date 2018/06/29 · openalex publication_date 2018/10/10 · arxiv updated 2018/10/17 · openalex updated_date 2026/08/05
We study an optomechanical system for the purpose of generating a nonclassical mechanical state when a mechanical oscillator is quadratically coupled to a single-mode cavity field driven by a squeezed optical field. The system corresponds to a regime where the optical dissipation dominates both the mechanical damping and the optomechanical coupling. We identify that multiphonon processes emerge in the optomechanical system and show that a mechanical oscillator prepared in the ground state will evolve into an amplitude-squared squeezed vacuum state. The Wigner distribution of the steady state of the mechanical oscillator is non-Gaussian exhibiting quantum interference and fourfold symmetry. This nonclassical mechanical state, generated via reservoir engineering, can be used for quantum correlation measurements of the position and momentum of the mechanics below the standard quantum limit.