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arXiv 2601.06752quant-ph
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通用量子信息处理的范式:集成声光频率分束器

A paradigm for universal quantum information processing with integrated acousto-optic frequency beamsplitters

Purdue University(普渡大学);Oak Ridge National Laboratory(橡树岭国家实验室);Northern Arizona University(北亚利桑那大学);Sandia National Laboratories(桑迪亚国家实验室);Qunnect Inc.(Qunnect公司)

Joseph M. Lukens, John H. Dallyn, Hsuan-Hao Lu, Noah I. Wasserbeck, Austin J. Graf, Michael Gehl, Paul S. Davids, Nils T. Otterstrom

AI总结:

本文提出利用声光散射过程实现通用频率分束量子信息处理的新型范式,通过可控相位匹配实现2×2分束器和横模依赖相移器,构建可级联的FRODOs,实现任意单元ary操作。

摘要:

频率分束编码在量子光子信息处理中具有巨大潜力,单波导可自然稳定支持数百条光路。然而,任意单元ary操作需通过级联电光相位调制器和脉冲成型器实现,但设计需非平凡数值优化,目前仅限于离散台式组件。本文提出、形式化并计算评估了一种新的通用频率分束量子信息处理范式,利用不同横模间的声光散射过程。我们展示可控相位匹配在横模过程中的作用,可实现2×2频率分束器和横模依赖相移器,共同构成可级联的FRequency-transverse-mODe Operations (FRODOs),通过解析分解过程合成任意单元ary。对随机门和离散傅里叶变换的性能建模,证明现有集成光子技术可实现高保真量子操作,突出可并行化操作实现100%带宽利用率的前景。本方法可利用CMOS技术实现,开启频率域内可扩展的芯片量子信息处理之门。

英文摘要:

Frequency-bin encoding offers tremendous potential in quantum photonic information processing, in which a single waveguide can support hundreds of lightpaths in a naturally phase-stable fashion. This stability, however, comes at a cost: arbitrary unitary operations can be realized by cascaded electro-optic phase modulators and pulse shapers, but require nontrivial numerical optimization for design and have thus far been limited to discrete tabletop components. In this article, we propose, formalize, and computationally evaluate a new paradigm for universal frequency-bin quantum information processing using acousto-optic scattering processes between distinct transverse modes. We show that controllable phase matching in intermodal processes enables 2$\times$2 frequency beamsplitters and transverse-mode-dependent phase shifters, which together comprise cascadable FRequency-transverse-mODe Operations (FRODOs) that can synthesize any unitary via analytical decomposition procedures. Modeling the performance of both random gates and discrete Fourier transforms, we demonstrate the feasibility of high-fidelity quantum operations with existing integrated photonics technology, highlighting prospects of parallelizable operations achieving 100\% bandwidth utilization. Our approach is realizable with CMOS technology, opening the door to scalable on-chip quantum information processing in the frequency domain.

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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