IonQ, Inc. had been awarded a contract in the Defense Advanced Research Projects Agency (DARPA)?s Heterogeneous Architectures for Quantum (HARQ) program. As a part of HARQ, IonQ plays a critical role in enabling a new class of networked quantum computers that combine distinct qubit types?such as trapped ions, neutral atoms, and/or superconducting qubits?into an interconnected, high-performance architecture taking advantage of each modality?s strengths. This effort seeks to leverage advances in photonic integration and quantum interconnects for reliable communication between diverse qubit species.

IonQ?s contribution to the HARQ program focuses on quantum memories, which are the core chips around which IonQ?s quantum interconnect systems are built. IonQ?s memories are field-leaders in networking applications ranging from datacenter-scale interconnects to advanced long-distance entanglement distribution networks, and are well-suited to supporting HARQ?s ambitious ultimate speed and fidelity targets. IonQ?s involvement in HARQ supports the company?s mission to deliver on its aggressive commercial and technical goals.