利用大规模集成光子-电子电路生成纠缠统计
Generation of entanglement statistics with a large-scale integrated photonic-electronic circuit
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中文总结 AI 辅助
本文提出一种光电量子信息处理方法，通过32通道集成光子-电子电路在射频域进行模变换，实现低于可分性边界三个标准差的纠缠统计生成，为光-微波量子计算奠定基础。
中文摘要 AI 辅助
连续变量量子处理器的规模受限于其能够变换的模数，且每次变换都会引入损耗。我们展示了光电量子信息处理，将混频操作在零差探测后移至射频电子学中。压缩真空态入射到大规模集成光子-电子电路上，该电路是一个32通道相干接收机阵列，其射频网络对模拟光电流进行混频。本振斜坡在孔径处重构双模协方差矩阵，该矩阵是物理的，其部分转置的最小辛本征值为0.99270，低于可分性边界三个标准差。模式变换成为电路功能，其规模随集成电子学发展。若以电光换能器替代光电二极管，同一接收机可将光学模转移至超导电路并返回，从而迈向覆盖光学和微波波段的光子-电子量子计算机。
英文摘要
Continuous-variable quantum processors scale with the modes they can transform, and each transformation adds loss. We demonstrate optoelectronic quantum information processing, moving the mixing into radio-frequency electronics after homodyne detection. Squeezed vacuum falls on a large-scale integrated photonic-electronic circuit, a 32-channel coherent receiver array whose radio-frequency network mixes the analog photocurrents. A local-oscillator ramp reconstructs the two-mode covariance at the aperture, which is physical, and its partial transpose has smallest symplectic eigenvalue 0.99270, three standard deviations below the separability bound. Mode transformation becomes a circuit function whose scale follows integrated electronics. With electro-optic transducers in place of the photodiodes, the same receiver would transfer optical modes into superconducting circuits and back, toward a photonic-electronic quantum computer spanning the optical and microwave bands.
发表机构
- California Institute of Technology（加州理工学院）
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