2008/06/12 by Claudiu Genes, C. Genes, A. Mari +4 · 1 citation
Computer Science · Engineering · Physics and Astronomy · #Mechanical and Optical Resonators #Photonic and Optical Devices #Quantum Information and Cryptography #quant-ph
paper · pdf · doi:10.1103/physreva.78.032316
published as Phys. Rev. A 78, 032316 (2008)
arxiv created 2008/06/12 · openalex publication_date 2008/09/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
We perform an analysis of the optomechanical entanglement between the experimentally detectable output field of an optical cavity and a vibrating cavity end-mirror. We show that by a proper choice of the readout (mainly by a proper choice of detection bandwidth) one cannot only detect the already predicted intracavity entanglement but also optimize and increase it. This entanglement is explained as being generated by a scattering process owing to which strong quantum correlations between the mirror and the optical Stokes sideband are created. All-optical entanglement between scattered sidebands is also predicted, and it is shown that the mechanical resonator and the two sideband modes form a fully tripartite-entangled system capable of providing practicable and robust solutions for continuous-variable quantum-communication protocols.