First company to demonstrate scalable quantum behavior by integrating qubits with all supporting control and read-out electronics on the same integrated circuit using a commercial silicon process.

Equal1, a silicon-based quantum computing company, today announced the company is the first to demonstrate a fully integrated quantum processor unit (QPU) operating at 3.7 kelvin — a major milestone with implications for the trajectory of quantum computing.

The QPU employs patented, Equal1-designed, nanometer-scale quantum dots to create qubits on a standard silicon CMOS process. In addition to the silicon qubits, all control and read-out electronics required for a fully functioning QPU are integrated on-chip with over 10 million transistors.

Due to the operation of the qubits at 3.7 K (referred to as "hot qubits") and the level of integration the team has achieved, the form factor of the quantum demonstrator is far smaller than alternative technologies (rack-sized versus room-sized).

Elena Blokhina, Equal1 CTO: "Our team's ability to demonstrate quantum behavior on a fully integrated QPU will enable us to soon solve challenges in AI that cannot be solved today. We are proud of the milestone accomplishment and are excited to scale our technology to the next level."

Dirk Leipold, CEO: "By taking advantage of shrinking transistor geometries, we have demonstrated that integration into the millions of qubit range is possible, with moderate cooling requirements compared to other qubit technologies."

The QPU was manufactured on GlobalFoundries® leading low power 22FDX™ platform. The Equal1 team designed the complex mixed signal circuits using EDA software from Cadence Design Systems, Inc.

Equal1 has achieved this milestone supported by funding from Atlantic Bridge, Enterprise Ireland and 808 Ventures.