Quantum technology companies Welinq and QphoX have partnered to develop optical quantum interconnects for superconducting quantum computers. The partnership will target the challenges that superconducting quantum computers face in increasing the number of qubits by networking smaller quantum processing units (QPUs) into clusters. (Left) Simon Groeblacher, QphoX co-founder and CEO, and Tom Darras, Welinq co-founder and CEO. Courtesy of Welinq. QphoX’s fully-integrated quantum transduction technology enables the conversion of quantum information between vastly different frequency domains, providing the missing link between various quantum computation modalities and quantum communication systems. Building on Welinq’s recent announcement of its compiler (araQne), Welinq’s quantum link is a full-stack solution that integrates laser-cooled neutral atom quantum memories, photonic interconnects, and an advanced compiler for distributed quantum algorithms. This compiler enables efficient orchestration of circuits over quantum links that interconnect quantum processors. Welinq’s quantum memories allow QPUs to synchronize their operations to form robust distributed networks that function as cohesive systems. By combining these technologies, the partnership aims to provide a scalable solution for connecting quantum processors, paving the way for more powerful quantum systems. QphoX specializes in converting quantum signals for transfer between superconducting and optics-based QPUs and is already working with suppliers such as IQM and Rigetti Computing. Welinq provides advanced quantum interconnection systems that help manage and synchronize quantum information. The partnership reinforces Welinq’s full-stack, multi-platform positioning and QphoX’s qubit modality agnostic approach to quantum interconnects, and complements Welinq’s existing partnerships with neutral-atom QPUs like Pasqal and photonic QPUs like Quandela.