Exploring quantum correlations in a hybrid optomechanical system

Abstract

In quantum simulations and experiments on optomechanical cavities, coherence control is a challenging issue. We propose a scheme of two coupled optomechanical cavities to enhance the intracavity entanglement. Photon hopping is employed to establish couplings between optical modes, while phonon tunneling is utilized to establish couplings between mechanical resonators. Both cavities are driven by classical light. We explore the influences of coupling strengths of the quantum correlations generated inside each cavity using two types of quantum measures: logarithmic negativity and quantum steering. This analysis will reveal the significance of these quantum metrics as well as their various aspects in the Doppler regime. We also investigate stability conditions based on coupling strengths. Therefore, it is possible to quantify the degree of intracavity entanglement. The generated entanglement can be enhanced by choosing the appropriate photon and phonon hopping strengths. A set of parameters based on the currently available experimental data was used in the calculations.

10 pages, 5 figures

References in corpus (18)

• Device-independent security of quantum cryptography against collective attacks
• Optomechanical entanglement between a movable mirror and a cavity field
• Ground-state cooling of a micromechanical oscillator: generalized framework for cold damping and cavity-assisted cooling schemes
• Single-photon Optomechanics
• Observation of Radiation Pressure Shot Noise on a Macroscopic Object
• Quantification of Gaussian quantum steering
• Observation of one-way Einstein-Podolsky-Rosen steering
• Steady state entanglement in the mechanical vibrations of two dielectric membranes
• Quantum Optomechanics - throwing a glance
• Cavity-assisted squeezing of a mechanical oscillator
• Electromagnetially-induced-transparency-like ground-state cooling in a double-cavity optomechanical system
• High-efficiency quantum state transfer and quantum memory using a mechanical oscillator
• Phase control of entanglement and quantum steering in a three-mode optomechanical system
• Optimal fidelity of teleportation of coherent states and entanglement
• Entanglement dynamics of two-bipartite system under the influence of dissipative environments
• Quantumness of Gaussian Discord: Experimental Evidence and Role of System-Environment Correlations
• Engineering a squeezed phonon reservoir with a bichromatic driving of a quantum dot
• An Optomechanical Platform for Quantum Hypothesis Testing for Collapse Models