Yaqumo and QC Design Announce Collaboration to Accelerate Fault-Tolerant Neutral-Atom Quantum Computing 

Tokyo, Japan / Ulm, Germany 

Yaqumo Inc., a Japanese quantum computing company developing a pioneering integrated neutral-atom quantum computer, and QC Design, a provider of advanced design-automation software for fault-tolerant quantum computing, today announced that Yaqumo has adopted QC Design’s Plaquette platform as part of a broader collaboration to accelerate the development of fault-tolerant neutral-atom quantum computers. 

Plaquette is a quantum design-automation platform that enables hardware teams to simulate, analyze, and optimize fault-tolerant quantum architectures under realistic conditions, modeling more than 20 types of real-world hardware imperfections. Through this collaboration, Yaqumo will leverage Plaquette to rigorously evaluate and refine its neutral-atom qubit architectures as it scales toward large-scale, fault-tolerant quantum computing systems. 

Yaqumo’s neutral-atom approach offers key advantages for scalable quantum computing, including the ability to scale qubit counts from thousands to tens of thousands by increasing laser power, as well as long coherence times that reduce computational errors. By integrating Plaquette into its R&D workflow, Yaqumo gains a quantitative framework to assess how realistic hardware imperfections impact logical qubit performance across different quantum error-correction codes, control strategies, and decoding methods. 

“We are excited to collaborate with QC Design and to adopt Plaquette as a core tool in our fault-tolerant quantum computing development,” said Kazuhiro Nakashoji, CEO and Founder of Yaqumo. “Plaquette enables us to model realistic hardware imperfections, quantitatively compare codes and decoders, and rapidly iterate on architecture and control strategies. This collaboration enhances the capabilities we have been developing internally, allowing us to design logical qubit demonstrations and architectures with significantly greater speed and efficiency.” 

“We are delighted to work with Yaqumo as they advance one of the most promising approaches to scalable quantum computing,” said Dr. Ish Dhand, Co-founder and CEO of QC Design. “Neutral-atom systems offer a compelling path forward, combining scalability—from thousands to tens of thousands of qubits by increasing laser power—with long coherence times that fundamentally reduce errors. As Japan accelerates its quantum computing initiatives through national programs, we are proud to support Yaqumo’s efforts toward building a pioneering integrated neutral-atom quantum computer in Japan.” 

This collaboration reflects the growing momentum of Japan’s quantum computing ecosystem. Founded in April 2025 as a spin-out from Kyoto University’s Takahashi Laboratory and the Institute for Molecular Science’s Ohmori Laboratory, Yaqumo is developing quantum computing hardware as part of Japan’s national programs. QC Design continues to support the global quantum industry’s transition to fault-tolerant quantum computing by partnering with leading hardware teams across all major qubit platforms. 

About Yaqumo 

Yaqumo Inc. is a Japanese quantum computing company pioneering the development of Japan’s integrated neutral-atom quantum computer for real-world applications. Founded in April 2025 as a spin-out from Kyoto University’s Takahashi Laboratory and the Institute for Molecular Science’s Ohmori Laboratory, Yaqumo is developing a scalable, fault-tolerant quantum computing architecture based on neutral atoms, leveraging their inherent scalability and long coherence times. 

About QC Design 

QC Design develops Plaquette, a design-automation platform for fault-tolerant quantum computing. Plaquette enables hardware teams to simulate, analyze, and optimize quantum architectures under realistic conditions by modeling more than 20 hardware imperfections, significantly beyond typical open-source tools. With deep expertise in fault-tolerance strategies and advanced software capabilities, QC Design helps quantum hardware teams design scalable quantum computers faster and at substantially lower cost than building equivalent tools in-house.