Enhancement of entanglement in distant micromechanical mirrors using parametric interactions
arXiv:1606.08946 · doi:10.1140/epjd/e2016-70543-4
Abstract
We theoretically investigate the stability of a two cascaded cavity optomechanical system with optical parametric amplifiers (OPAs) inside the two coupled cavities, and study the steady-state entanglement between two distant mechanical resonators. We show that the parameter regime where the system is unstable without OPAs, such as relatively high laser intensity and blue detuning, can be exploited to build the steady-state mechanical entanglement by modulating the parametric gain. The application of OPAs is helpful to preserve the mechanical entanglement suffered from the dissipation at some finite temperature. The scheme provides an alternative way for improving and engineering the quantum entanglement of two distant mechanical oscillators.
10 pages, 7 figures
References in corpus (12)
- Strong dispersive coupling of a high finesse cavity to a micromechanical membrane
- Scalable multi-particle entanglement of trapped ions
- Optomechanical entanglement between a movable mirror and a cavity field
- An Open-System Quantum Simulator with Trapped Ions
- Squeezed Optomechanics with Phase-matched Amplification and Dissipation
- Creating and probing macroscoping entanglement with light
- Back-action evasion and squeezing of a mechanical resonator using a cavity detector
- Steady state entanglement in the mechanical vibrations of two dielectric membranes
- Steady-state Mechanical Squeezing in an Optomechanical System via Duffing Nonlinearity
- Bipartite and tripartite output entanglement in 3-mode optomechanical systems
- Generating EPR beams in a cavity optomechanical system
- Optomechanics (a brief review)