Welinq

Welinq is a French quantum computing startup that provides solutions for quantum memory and quantum processor interconnection to drastically increase the computational power of quantum processors. Welinq harnesses laser-cooled neutral-atom technology to develop highly efficient quantum memories that enable the storage and on-demand release of quantum information without altering its properties. By leveraging this technology, the team has demonstrated the world record in storage-and-retrieval efficiency of 90% with a qubit fidelity above 99% as of 2023.

Welinq's quantum memories are essential for interconnecting multiple quantum processing units (QPUs), facilitating the scaling up of the number of qubits and optimized QPU deployment. This innovative approach establishes the foundation for expansive quantum networks and is central to achieving fault-tolerant quantum computing. The company is currently developing its first product, a highly efficient quantum memory that will be deployable, transportable, and integrated into quantum computing and quantum communication infrastructures.

Key customers and partnerships

In April 2024, Welinq announced partnered with Pasqal to address the challenges of qubit scaling for fault-tolerant quantum computing by leveraging Welinq's quantum interconnect technology to network multiple QPUs. Welinq will provide its full-stack, turnkey quantum links and the world's most efficient quantum memories based on cold neutral atoms, while Pasqal offers expertise in quantum computing with neutral atoms.

The partnership's ambitious roadmap includes milestones such as an industrial prototype of Welinq's neutral atom quantum memory with cutting-edge efficiency, storage time, and fidelity by the end of 2024, and Pasqal's breakthrough with 1000-qubit QPUs in the same year. By 2030, the companies aim to foster a thriving quantum computing ecosystem, driving significant scientific and commercial advancements.