论文标题
抑制与电信兼容量子点的电子 - 音波耦合相关的反校准：量子态反演的低阈值重新出现状态
Suppression of Decoherence tied to Electron-Phonon Coupling in Telecom-Compatible Quantum Dots: Low-threshold Reappearance Regime for Quantum State Inversion
论文作者
论文摘要
我们证明，在大型半导体量子点（QDS）上，在光控制实验中，限制电子与纵向声音（LA）声子的变形电势耦合有关的变形电势耦合与发射与低分散电信带兼容的低分散电信带兼容1.3〜 $ $ m $ m $ $ m $。通过利用电子光谱密度对QD的大小和形状的灵敏度，我们证明了使用绝热快速通道（ARP）进入脱钩的脱钩式型阈值脉冲区域的降低四倍。我们对量子状态动力学的计算与我们的实验结果提供了良好的一致性，并表明QD波函数的对称性提供了一种额外的手段来设计电子 - phonon相互作用。我们的发现将支持使用半导体QD在未来分布式量子网络中固态量子发射器的开发。
We demonstrate full suppression of dephasing tied to deformation potential coupling of confined electrons to longitunidal acoustic (LA) phonons in optical control experiments on large semiconductor quantum dots (QDs) with emission compatible with the low-dispersion telecommunications band at 1.3~$μ$m. By exploiting the sensitivity of the electron-phonon spectral density to the size and shape of the QD, we demonstrate a four-fold reduction in the threshold pulse area required to enter the decoupled regime for exciton inversion using adiabatic rapid passage (ARP). Our calculations of the quantum state dynamics provide good agreement with our experimental results and indicate that the symmetry of the QD wave function provides an additional means to engineer the electron-phonon interaction. Our findings will support the development of solid-state quantum emitters in future distributed quantum networks using semiconductor QDs.
