一种单光子水平的固态临时多路量子存储阵列

IF 8.3 1区 物理与天体物理 Q1 PHYSICS, APPLIED
Markus Teller, Susana Plascencia, Cristina Sastre Jachimska, Samuele Grandi, Hugues de Riedmatten
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引用次数: 0

摘要

利用不同自由度的多模态是提高远程量子节点间预示纠缠率的最有希望的方法之一。在本文中,我们实现了一个空间复用的固态量子存储阵列,该阵列具有十个独立可控的自旋波存储单元,具有按需读出和时间复用功能。通过结合空间和时间复用,我们在单光子水平存储了多达250个时空模式的弱相干脉冲,平均信噪比为10(2)。我们对整个系统进行了全面的表征,包括其多路复用和解路复用阶段。我们验证了存储阵列即使在单光子水平上也表现出低串扰。测量的性能表明了存储非经典状态的准备状态,并有望加速纠缠分布率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A solid-state temporally multiplexed quantum memory array at the single-photon level

A solid-state temporally multiplexed quantum memory array at the single-photon level

The exploitation of multimodality in different degrees of freedom is one of the most promising ways to increase the rate of heralded entanglement between distant quantum nodes. In this paper, we realize a spatially-multiplexed solid-state quantum memory array with ten individually controllable spin-wave memory cells featuring on-demand read-out and temporal multiplexing. By combining spatial and temporal multiplexing, we store weak coherent pulses at the single-photon level in up to 250 spatio-temporal modes, with an average signal-to-noise ratio of 10(2). We perform a thorough characterization of the whole system, including its multiplexing and demultiplexing stage. We verify that the memory array exhibits low cross-talk even at the single-photon level. The measured performance indicates readiness for storing non-classical states and promises a speed-up in entanglement distribution rates.

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来源期刊
npj Quantum Information
npj Quantum Information Computer Science-Computer Science (miscellaneous)
CiteScore
13.70
自引率
3.90%
发文量
130
审稿时长
29 weeks
期刊介绍: The scope of npj Quantum Information spans across all relevant disciplines, fields, approaches and levels and so considers outstanding work ranging from fundamental research to applications and technologies.
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