Dynamics of Rényi-2 correlations in optomechanics
| Autor: | Abderrahim Lakhfif, Abdelkader Hidki, Jamal El Qars, Mostafa Nassik |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Physica Scripta. 97:095102 |
| ISSN: | 1402-4896 0031-8949 |
| Popis: | We report on temporal evolution of three different kinds of correlations present between two mechanical resonators of two distant Fabry-Pérot cavities. The two cavities are jointly fed by a two-mode squeezed light and driven by two independent coherent lasers. We consider the initial state of the two mechanical modes as a two-mode uncorrelated thermal state. After evaluating the dynamical covariance matrix elements, we give explicit expressions of the measures of correlations defined via the Rényi-2 entropy, namely, the Rényi-2 quantum mutual information, the Gaussian Rényi-2 entanglement and the Gaussian quantum steering. We find that by an appropriate choice of the system parameters, it is possible to generate entanglement and steering via a quantum correlations transfer from squeezed light to the mechanical bi-mode state. The influence of the squeezing parameter, the optomechanical cooperativity and the environmental thermal noise on the correlations are studied thoroughly. Additionally, we show in various circumstances that the considered temporal correlations respect the hierarchical relation established in L Lami, C Hirche, G Adesso, and A Winter, (2016Phys. Rev. Lett.117, 220 502). |
| Databáze: | OpenAIRE |
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