Creating mirror–mirror quantum correlations in optomechanics
| Autor: | Bouchra Maroufi, Mohammed Daoud, M. Amazioug |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Quantum discord Photon Measure (physics) Physics::Optics Quantum Physics Quantum entanglement 01 natural sciences Atomic and Molecular Physics and Optics 010305 fluids & plasmas Quantum mechanics 0103 physical sciences Quantum information 010306 general physics Quantum Optomechanics Squeezed coherent state |
| Zdroj: | The European Physical Journal D. 74 |
| ISSN: | 1434-6079 1434-6060 |
| DOI: | 10.1140/epjd/e2020-100518-7 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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