动力学解耦保持Optical Fibers中飞行量子比特的纠缠
Preserving Entanglement of Flying Qubits in Optical Fibers by Dynamical Decoupling
摘要：
从理论上研究了经典高斯1/f噪声下保偏双折射光纤（PMF）中动态退耦序列对保偏光子纠缠的影响.我们研究了纠缠沿控制序列嵌入光纤的动态演化。保偏光纤中由于偏振模色散引起的退相干可以被显著抑制，即使在很宽的光带宽下也是如此。在控制脉冲的作用下，纠缠度可以得到有效的保持。
英文摘要：
We theoretically investigate the influence of dynamical decoupling sequence in preserving entanglement of polarized photons in polarization-maintaining birefringent fibers(PMF) under a classic Gauss 1/f noise. We study the dynamic evolution of entanglement along the control sequence embedded fibers. Decoherence due to dispersion of polarization mode in PMF can be dramatically depressed, even for a wild optical width. Entanglement degree can be effectively preserved while the control pulse is implemented.
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