NanoQT

NanoQT, founded in 2022, is Japan's first quantum computer hardware startup. The company develops scalable quantum computing infrastructure built on proprietary nanofiber cavity quantum electrodynamics (cavity-QED) technology, with a focus on fiber-native quantum interconnects that link quantum processing units (QPUs) into modular, networked architectures rather than monolithic, disconnected systems. It has raised $14 million in Series A funding and maintains a presence in Japan, Palo Alto, California and College Park, Maryland.

Two products form the core of the company's offering. Fiber-native quantum interconnects provide high-fidelity quantum connectivity between processors. Ultra-low-loss nanofiber cavities operate at room temperature, integrate with neutral atom QPUs and existing optical fiber networks, and emit photons at telecom wavelengths, supporting long-distance quantum communication.

Technical work spans quantum computing hardware, nanofiber cavity-QED, quantum interconnects, quantum networking, optical fiber photonics, neutral atom quantum computing and telecom-wavelength photonics. NanoQT collaborates with academic and industry partners, including QuEra Computing, Waseda University, the University of Tokyo and the University of Maryland.