研究目的
To investigate the non-classical correlations existing in a mixed bipartite state consisting of a reflected optical mode and a mechanical mode in an optomechanical system with radiation pressure.
研究成果
The study successfully quantifies non-classical correlations in an optomechanical system using the PPT criterion, Gaussian quantum steering, and Gaussian interferometric power. It demonstrates the dynamic evolution of entanglement and steerability between optical and mechanical modes, highlighting the role of Gaussian interferometric power in measuring quantum correlations beyond entanglement.
研究不足
The study is theoretical and focuses on a specific optomechanical system model. Experimental validation and the consideration of environmental decoherence effects are not addressed.
1：Experimental Design and Method Selection:
The study involves the calculation of the covariance matrix for a bipartite system under vacuum initial conditions, utilizing the PPT criterion for entanglement quantification, Gaussian quantum steering for steerability measurement, and Gaussian interferometric power for quantum correlation assessment beyond entanglement.
2：Sample Selection and Data Sources:
The system consists of a vibrating mirror and an intense quasi-monochromatic laser, with the reflected light analyzed in terms of optical and mechanical modes.
3：List of Experimental Equipment and Materials:
A movable mirror modeled as a quantum harmonic oscillator and a laser source are the primary components.
4：Experimental Procedures and Operational Workflow:
The dynamics of the system are described by linear Heisenberg equations derived from the effective Hamiltonian. The covariance matrix is calculated to analyze the quantum correlations.
5：Data Analysis Methods:
The smallest symplectic eigenvalue is used to quantify entanglement, Gaussian quantum steering measures steerability, and Gaussian interferometric power assesses quantum correlations beyond entanglement.
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