Welinq and QphoX partner to tackle quantum computing's scaling problem

Quantum startups Welinq and QphoX have announced a partnership to increase computing power by developing optical quantum interconnects for superconducting quantum computers. These interconnects will link quantum processors, allowing them to work together in clusters - a major step toward building larger, more powerful quantum systems.

Welinq is a company focused on enhancing quantum computing by developing solutions that connect quantum processors, thereby boosting their computational capabilities and enabling remote quantum access. Their approach involves creating "quantum links" that utilise photons synchronized by quantum memories to establish entanglement between separate Quantum Processing Units (QPUs).

Additionally, Welinq's technology aims to improve error correction in quantum computing. By linking QPUs through their quantum memories, they facilitate advanced error-correction strategies, addressing hardware imperfections that can lead to computational errors.

QphoX specializes in developing innovative networking solutions to address scaling challenges in quantum computing, notably through their quantum transduction technology that enables coherent conversion between microwave and optical signals. This technology facilitates the networking of superconducting quantum processors by bridging the gap between different frequency domains, thereby enhancing connectivity and parallelisation.

By partnering with QphoX, Welinq integrates their expertise in quantum interconnects and quantum memories with QphoX's transduction technology. This collaboration would aim to create seamless optical quantum interconnects for superconducting quantum computers, enabling efficient networking of multiple quantum processing units (QPUs). Such integration is crucial for scaling up the number of qubits and implementing error correction protocols, both essential steps toward achieving fault-tolerant quantum computing.

Welinq and QphoX are both EIC Accelerator Laureates and the EU also supports large-scale initiatives such as the Quantum Internet Alliance.

Tom Darras, CEO of Welinq, said: “This partnership with QphoX perfectly aligns with Welinq's mission to interconnect all types of quantum computers, all around the world. Together, we are actively working to ensure that all types of quantum processors can seamlessly communicate, strengthening Europe’s position as a leader in the global quantum race.”

Simon Gröblacher, CEO of QphoX, added: “The complementary technologies of Welinq and QphoX joined together are the critical missing link to scaling quantum processors and networks. This partnership will boost the capabilities of quantum systems in Europe and beyond.”