Creating mirror-mirror quantum correlations in optomechanics

被引：15
作者：
Amazioug, Mohamed [1 ,2 ]
Maroufi, Bouchra [2 ,3 ]
Daoud, Mohammed [4 ,5 ]
机构：
[1] Mohammed V Univ, Dept Phys, Ecole Normale Super, Rabat, Morocco
[2] Mohammed V Univ, Dept Phys, Fac Sci, LPHE MS, Rabat, Morocco
[3] Univ Hassan 2, Fac Sci Ben MSik, Dept Phys, LPMC, Casablanca, Morocco
[4] Univ Ibn Tofail, Fac Sci, Dept Phys, Kenitra, Morocco
[5] Abdus Salam Int Ctr Theoret Phys, Str Costiera 11, I-34151 Trieste, Italy
来源：
EUROPEAN PHYSICAL JOURNAL D | 2020年 / 74卷 / 03期
关键词：
Quantum Information; SUDDEN-DEATH; PROBABILITY RELATIONS; ENTANGLEMENT; CRITERION; DISCORD; LIGHT;
D O I：
10.1140/epjd/e2020-100518-7
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the transfer of quantum correlations between two movable mirrors of two Fabry-Perot cavities separated via broadband squeezed light and coupled via photon hopping process. We investigate the transfer of quantum correlations from EPR entangled squeezed light to the movable mirrors. We show that Gaussian quantum steering remains lower than entanglement. We employ Gaussian quantum steering to characterize the steerability between the two mechanical modes. The logarithmic negativity is used as the witness of quantum entanglement and Gaussian quantum discord gives the measure of all non classical correlations including entanglement. We conclude that the transfer of quantum correlations is optimal for a strong optomechanical coupling and decreases with the thermal effects. We also conclude that steering, entanglement and discord are directly related to photon hopping coupling and the squeezing parameter.
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页数：9
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