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arXiv · 2402.14372

Time-domain programmable beam-splitter operations for an optical phase-sensitive non-Gaussian state

Daichi Okuno·Takato Yoshida·Ryoko Arita·Takahiro Kashiwazaki·Takeshi Umeki·Shigehito Miki·Hirotaka Terai·Masahiro Yabuno·Fumihiro China·Shuntaro Takeda
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Abstract

We present a loop-based optical processor enabling time-domain programmable beam-splitter (BS) operations for a phase-sensitive non-Gaussian state. The loop itself is of high quality, allowing for storage of a non-Gaussian state for up to seven round trips while preserving its Wigner negativity and phase coherence. We perform various BS operations on a non-Gaussian state and evaluate them as transformations of the state's waveforms. Our work integrates non-Gaussian states with time multiplexing, laying the foundation for large-scale universal quantum information processing.

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Daichi Okuno, Takato Yoshida, Ryoko Arita, Takahiro Kashiwazaki, Takeshi Umeki, Shigehito Miki, Hirotaka Terai, Masahiro Yabuno, Fumihiro China, Shuntaro Takeda. 2024-02-22. Time-domain programmable beam-splitter operations for an optical phase-sensitive non-Gaussian state. https://doi.org/10.1103/physreva.110.023706

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