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The propagation characteristic of the EPR entanglement for a composite non-degenerate parametric optical amplification system |
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| Authors: | Zhao Chao-Ying and Tan Wei-Han |
| Affiliation: | The College of Science, Hangzhou Dianzi University, Zhejiang 310018, China; The State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China; Department of Physics, Shanghai University, Shanghai 200444, China |
| Abstract: | This paper applies the minimum variance V1 criterion tomonitor the evolution of signal and idler modes of a compositenon-degenerate optical parametric amplification (NOPA) system. The analyticsand numerical calculation show the influence of the transition time,the vacuum fluctuations, and the thermal noise level on the EPRentanglement of the composite NOPA system. It finds that theentanglement and the squeezing degrade as the minimum variance V1increases. |
| Keywords: | EPR entanglement composite non-degenerate optical parametricamplification the Fokker--Planck equation |
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