Regular Article - Quantum Optics
Controlling photon–phonon entanglement in a three-mode optomechanical system
EPTHE, Department of Physics, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
2 Department of Physics, Faculty of Applied Sciences, Ait-Melloul, Ibn Zohr University, Agadir, Morocco
Accepted: 15 June 2021
Published online: 28 June 2021
In this paper, we consider a three-mode optomechanical system, where two movable mirrors are coupled to a single cavity mode with different optomechanical coupling strengths. Instead of the phonon–phonon entanglement which has often been studied, here we focus on the photon–phonon entanglement. Using the logarithmic negativity, we found that stationary entanglement strongly depends on the temperature, dissipation rates, and optomechanical couplings. Furthermore, the system at hand exhibits an entanglement transfer that can be controlled using only one of the two optomechanical couplings. However, manipulating optomechanical couplings is limited by the stability conditions.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2021