The Future of Quantum Hardware

Delivering 10X the Quantum Performance Each Year

Quantinuum H-Series

The System Model H1, Powered by Honeywell, is our first generation quantum computer. Since being released in 2020, H1 has improved its Quantum Volume from QV = 128 to QV = 524,288, and is the first quantum computer to set numerous quantum volume records on its path to current performance of 524,288. System Model H1 features industry-leading performance and unique capabilities such as all-to-all connectivity, mid-circuit measurement, conditional logic, and qubit reuse.

The System Model H2, Powered by Honeywell, is our second generation of quantum computers with a new racetrack-shaped trap. Featuring 32 fully-connected qubits, we show that Quantinuum's QCCD architecture can scale up in qubit number without reducing the gate fidelities or trading-off on the unique capabilities. Quantinuum’s H2 has a quantum volume of 65,536 (216) and maintains the highest commercially available two-qubit gate fidelity of 99.8%.

Building Economic Value

Quantinuum has a unique model for hardware development. We are accelerating the economic value of the computer. Customers have access to our most powerful machines which means they take advantage of our continuous upgrade of fidelity, quantum volume, speed, and the number of qubits.

The Power of Quantum Volume

Quantum Volume is a measurement created by IBM. Generally, the larger the Quantum Volume of a quantum computer, the more complex the problems a computer can solve. Quantum performance is not about how many qubits you have, it’s about how effective your qubits are.

The Quantum Volume of the System Model H2, Powered by Honeywell, has been measured at 65,536 and the Quantum Volume of the System Model H1, Powered by Honeywell, has been measured at 524,288.

Why Trapped-ion QCCD Quantum Computing?

We have focused on trapped-ion computing in the QCCD architecture because it allows for maximum flexibility in algorithmic design, and enables a clear path to scaling while maintaining the extremely high fidelity operations already demonstrated in few-qubit ion experiments. With the H1 system, we have deployed a full stack 20-qubit universal quantum computer with two-qubit gate fidelities of 99.87%, comparable to the best fidelities demonstrated in leading proof-of-principle two-qubit experiments.

In addition, our hardware architecture allows for mid-circuit measurement. In the middle of executing an algorithm, you can measure select qubits without inadvertently measuring others, process the measurement results using classical algorithms in real time, and condition future operations in the circuits based on the results of that processing. This capability is crucial for the ultimate goal of creating fault-tolerant quantum computers, and enabled the first ever demonstration of real-time quantum error correction. In certain cases, mid-circuit measurement also enables us to effectively run algorithms that require more physical qubits than currently exist in the H-Series quantum computers, such as our recent study of critical properties of the transverse-field Ising model on 128 qubits.

Finally, by moving and regrouping qubits into arbitrary pairs in the middle of a circuit with near perfect fidelity, our hardware provides “all-to-all connectivity”.  This flexible connectivity allows us to reduce computational steps and overhead in many near-term use cases of quantum computers, thereby providing higher-fidelity results.

Access the H-Series

Oak Ridge National Laboratory

Hardware Research & Development

Our team of hardware scientists are continually at work developing new ways to improve performance in the current NISQ era and beyond.