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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 |
| Institution: | 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 to monitor the evolution of signal and idler modes of a composite non-degenerate optical parametric amplification (NOPA) system. The analytics and numerical calculation show the influence of the transition time, the vacuum fluctuations, and the thermal noise level on the EPR entanglement of the composite NOPA system. It finds that the entanglement and the squeezing degrade as the minimum variance V1 increases. |
| Keywords: | EPR entanglement composite non-degenerate optical parametric amplification the Fokker--Planck equation |
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