Optomechanical entanglement in the presence of laser phase noise

2011/06/30 by Roohollah Ghobadi, R. Ghobadi, Alireza Bahrampour +3 · 4 citations
Computer Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Bistability #Computer science #Formalism (music) #Ground state #Laser #Mechanical and Optical Resonators #Noise (video) #Nonlinear Dynamics and Pattern Formation #Optics #Phase (matter) #Phase noise #Physics #Quantum #Quantum electrodynamics #Quantum entanglement #Quantum mechanics #Statistical physics #quant-ph

paper · pdf · doi:10.1103/physreva.84.063827

published as Phys. Rev. A 84, 063827 (2011) · 5 pages, 3 figures

openalex publication_date 2011/12/12 · arxiv created 2012/03/23 · arxiv updated 2015/05/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study the simplest optomechanical system in the presence of laser phase noise (LPN) using the covariance matrix formalism. We show that for any LPN model with a finite correlation time, the destructive effect of the phase noise is especially strong in the bistable regime. This explains why ground-state cooling is still possible in the presence of phase noise, as it happens far away from the bistable regime. We also show that the optomechanical entanglement is strongly affected by phase noise.

Citations

• Laser linewidth hazard in optomechanical cooling
• Robust entanglement of a micromechanical resonator with output optical fields
• Sideband cooling of micromechanical motion to the quantum ground state
• Separability Criterion for Density Matrices
• Optomechanical Entanglement between a Movable Mirror and a Cavity Field
• Peres-Horodecki Separability Criterion for Continuous Variable Systems
• Ground-state cooling of a micromechanical oscillator: Comparing cold damping and cavity-assisted cooling schemes

Cited by

• Enhancing quantum correlations in an optomechanical system via cross-Kerr nonlinearity
• Entanglement versus Gaussian quantum discord in a double-cavity opto-mechanical system
• Optimal State Estimation for Cavity Optomechanical Systems
• Effect of laser phase noise on the fidelity of optomechanical quantum memory