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arXiv 2102.00283quant-phphysics.optics
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纳米线中量子点的时间仓纠缠光子的演示和建模

Demonstration and modelling of time-bin entangled photons from a quantum dot in a nanowire

Philipp Aumann, Maximilian Prilmüller, Florian Kappe, Laurin Ostermann, Dan Dalacu, Philip J. Poole, Helmut Ritsch, Wolfgang Lechner, Gregor Weihs

摘要:

利用相位相干的皮秒脉冲对共振激发InAsP量子点中的双激子态,通过双激子-激子级联制备时间仓纠缠光子对.我们表明,该方案可以实现嵌入在InP纳米线的点。基本的物理机制可以用一个有效的三能级开放系统主方程来表示和定量分析。模拟参数,包括衰减和强度依赖的退相率提取的实验数据,这反过来让我们预测所产生的纠缠和最佳的操作条件。

英文摘要:

Resonant excitation of the biexciton state in an InAsP quantum dot by a phase-coherent pair of picosecond pulses allows preparing time-bin entangled pairs of photons via the biexciton-exciton cascade. We show that this scheme can be implemented for a dot embedded in an InP nanowire. The underlying physical mechanisms can be represented and quantitatively analyzed by an effective three-level open system master equation. Simulation parameters including decay and intensity dependent dephasing rates are extracted from experimental data, which in turn let us predict the resulting entanglement and optimal operating conditions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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