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arXiv · 2506.16147

A full-stack analog optical quantum computing platform with one hundred inputs

Shota Yokoyama·Atsushi Sakaguchi·Warit Asavanant·Kan Takase·Yi-Ru Chen·Hironari Nagayoshi·Jun-ichi Yoshikawa·Takahiro Kashiwazaki·Asuka Inoue·Takeshi Umeki·Toshikazu Hashimoto·Takuji Hiraoka·Akira Furusawa·Hidehiro Yonezawa
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Abstract

Optical technology is a highly promising platform for quantum computing due to its enormous potential for large-scale, ultrafast computation. However, realizing a programmable and scalable system remains a significant challenge. Here, we present a high-speed programmable Gaussian quantum computing platform with one hundred inputs based on a continuous-variable full-stack architecture. Our system features a 100 MHz clock frequency and integrates a cloud-based interface with an open-source Python software development kit, mqc3, significantly enhancing accessibility and operational flexibility. We provide a comprehensive characterization of our system and its capabilities through multi-input and multi-step teleportation, as well as the programmable routing of quantum states across 101 input modes. This platform represents a critical milestone in scalable analog quantum information processing, offering a robust testbed for the future integration of non-Gaussian resources and the development of large-scale optical neural networks.

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Shota Yokoyama, Atsushi Sakaguchi, Warit Asavanant, Kan Takase, Yi-Ru Chen, Hironari Nagayoshi, Jun-ichi Yoshikawa, Takahiro Kashiwazaki, Asuka Inoue, Takeshi Umeki, Toshikazu Hashimoto, Takuji Hiraoka, Akira Furusawa, Hidehiro Yonezawa. 2025-06-19. A full-stack analog optical quantum computing platform with one hundred inputs. https://arxiv.org/abs/2506.16147

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