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.
Cite
@article{arxiv.2402.14372,
title = {Time-domain programmable beam-splitter operations for an optical phase-sensitive non-Gaussian state},
author = {Daichi Okuno and Takato Yoshida and Ryoko Arita and Takahiro Kashiwazaki and Takeshi Umeki and Shigehito Miki and Hirotaka Terai and Masahiro Yabuno and Fumihiro China and Shuntaro Takeda},
journal= {arXiv preprint arXiv:2402.14372},
year = {2024}
}