CavilinQ, a Cambridge-based hardware startup, has closed an $8.8 million seed funding round led by QVT, with participation from Safar Partners, MFV Partners, Serendipity Capital, and Harper Court Ventures. The company is developing interconnect hardware designed to link multiple quantum processors, addressing the physical scaling limitations inherent in single-processor architectures. The capital will be used to establish a specialized laboratory in Cambridge, MA, and expand the engineering team to support the development of production-ready prototypes.
The company’s technical approach involves cavity-enhanced photonic links that create high-fidelity light-matter interfaces. These interconnects are intended to unify isolated quantum processors into a single distributed system, effectively operating as a modular, high-performance cluster. While the technology is designed to be platform-agnostic, CavilinQ’s initial demonstrations will focus on integration with neutral atom quantum processors. The company was co-founded by Dr. Mikhail Lukin (Harvard University) and Dr. Hannes Bernien (University of Chicago), whose academic research has focused on quantum networking and many-body physics.
The modular architecture proposed by CavilinQ mirrors classical distributed computing, where high-speed interconnects are utilized to bypass the power and space constraints of individual chips. By establishing a high-speed networking layer, the company aims to provide the foundational infrastructure required for fault-tolerant quantum computing at scale. According to the company’s roadmap, these cavity-enhanced interfaces are projected to offer significantly higher networking speeds compared to existing quantum entanglement-based technologies, serving as a critical enabler for utility-scale quantum processing.
For further details on the funding round and the company’s technical roadmap, consult the official CavilinQ announcement here.
April 2, 2026