2016/10/31 by Jie Li, Gang Li, Stefano Zippilli +2 · 1 citation
Computer Science · Mathematics · Physics and Astronomy · #Computer science #Control theory (sociology) #Feedback loop #Field (mathematics) #Force Microscopy Techniques and Applications #Laser #Mathematics #Mechanical and Optical Resonators #Mode (computer interface) #Optical cavity #Optics #Physics #Quantum #Quantum Information and Cryptography #Quantum entanglement #Quantum mechanics #Resonator #cond-mat.mes-hall #physics.optics #quant-ph
paper · pdf · doi:10.1103/physreva.95.043819
published as Phys. Rev. A 95, 043819 (2017) · 8 pages, 4 figures, to appear in PRA
arxiv created 2017/03/28 · openalex publication_date 2017/04/13 · arxiv updated 2017/04/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
It was shown [New J. Phys. 17, 103037 (2015)] that large and robust entanglement between two different mechanical resonators could be achieved, either dynamically or in the steady state, in an optomechanical system in which the two mechanical resonators are coupled to a single cavity mode driven by a suitably chosen two-tone field. An important limitation of the scheme is that the cavity decay rate must be much smaller than the two mechanical frequencies and their difference. Here we show that the entanglement can be remarkably enhanced, and the validity of the scheme can be largely extended, by adding a coherent feedback loop that effectively reduces the cavity decay rate.