Quantum information processing with a travelling wave of light
Quantum information processing with a travelling wave of light
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行波光的量子信息处理
DOI：
10.1117/12.2289039
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Akira Furusawa
中科院分区：
文献类型：
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作者：
Takahiro Serikawa;Yu Shiozawa;Hisashi Ogawa;Naoto Takanashi;Shuntaro Takeda;Jun-ichi Yoshikawa;Akira Furusawa
我们在光的行波上开发量子信息处理，期望从热噪声中解放出来，容易与光纤通信耦合，并且潜在的高运算速度。尽管光存储器在技术上具有挑战性，但我们有一种替代方法可以将多步操作应用于行进的光，即连续变量单向计算。目前我们的研究成果包括时域一百万模纠缠链的生成、非线性资源状态的模式工程和实时非线性前馈。虽然它们是用自由空间光学实现的，但我们也在研究光子集成，并使用无源线性波导芯片进行量子隐形传态，作为纠缠，测量和前馈的演示。我们还建议将基于循环的体系结构作为连续变量计算的另一种模型。
We exploit quantum information processing on a traveling wave of light, expecting emancipation from thermal noise, easy coupling to fiber communication, and potentially high operation speed. Although optical memories are technically challenging, we have an alternative approach to apply multi-step operations on traveling light, that is, continuous-variable one-way computation. So far our achievement includes generation of a one-million-mode entangled chain in time-domain, mode engineering of nonlinear resource states, and real-time nonlinear feedforward. Although they are implemented with free space optics, we are also investigating photonic integration and performed quantum teleportation with a passive liner waveguide chip as a demonstration of entangling, measurement, and feedforward. We also suggest a loop-based architecture as another model of continuous-variable computing.