Affiliation:
1. North University of China
2. Shanxi University
3. Dalian University of Technology
Abstract
Quantum entanglement and Einstein–Podolsky–Rosen (EPR) steering are valuable resources in quantum information processing. How to enhance the quantum entanglement and EPR steering of coupled optomechanical systems with a weak squeezed vacuum field is studied when the displacement of detuning induced by the mechanical mode is considered. Compared with the condition that the system interacts with a vacuum environment, the quantum entanglement and EPR steering are stronger when the squeezed vacuum field is applied. A squeezed vacuum field with a large degree is not beneficial to enhance the quantum entanglement and EPR steering. Rather than the squeezing parameter of the squeezed vacuum field, the reference phase plays a vital role in this model.
Funder
Fundamental Research Program of Shanxi Province
National Natural Science Foundation of China
National Key Research and Development Program of China
Subject
Atomic and Molecular Physics, and Optics,Statistical and Nonlinear Physics
Cited by
1 articles.
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