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arXiv 1805.02494quant-ph
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Laser -用于预言单光子量子存储的书面集成平台

Laser-written integrated platform for quantum storage of heralded single photons

Alessandro Seri, Giacomo Corrielli, Darío Lago-Rivera, Andreas Lenhard, Hugues de Riedmatten, Roberto Osellame, Margherita Mazzera

摘要:

光与物质之间高效、长寿命的界面对于量子信息技术的发展至关重要。用于量子存储设备的集成光子学解决方案由于光限制而提供改进的性能,并实现更复杂和可扩展的设计。我们展示了一种基于激光写入波导的新型量子光存储平台。采用新的写入制度,使我们能够实现波导与以前的演示相比,改善限制能力。本文报道了在激光写入波导中实现单光子存储的首次实验。虽然我们实现的存储效率与在大规模样品中观察到的存储效率相当,但由于光-物质相互作用增强了近一个数量级,因此存储器准备所涉及的功率大大降低了100倍。此外,我们证明了激发态存储时间比以前实现的单光子集成量子存储器长100倍。我们的系统有望有效地满足高效和可扩展的集成量子存储设备的要求。

英文摘要:

Efficient and long-lived interfaces between light and matter are crucial for the development of quantum information technologies. Integrated photonics solutions for quantum storage devices offer improved performances due to light confinement and enable more complex and scalable designs. We demonstrate a novel platform for quantum light storage based on laser written waveguides. The new writing regime adopted allows us to attain waveguides with improved confining capabilities compared to previous demonstrations. We report the first demonstration of single photon storage in laser written waveguides. While we achieve storage efficiencies comparable to those observed in massive samples, the power involved for the memory preparation is strongly reduced, by a factor 100, due to an enhancement of the light-matter interaction of almost one order of magnitude. Moreover, we demonstrate excited state storage times 100 times longer than previous realizations with single photons in integrated quantum memories. Our system promises to effectively fulfill the requirements for efficient and scalable integrated quantum storage devices.

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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