IonQ Selected for DARPAIonQ Selected for DARPAâs Heterogeneous Architectures for Quantum Program IonQ announced that it has been awarded a contract in the Defense Advanced Research Projects Agencyâs Heterogeneous Architectures for Quantum program. As a part of HARQ, IonQ plays a critical role in enabling a new class of networked quantum computers that combine distinct qubit typesâsuch as, trapped ions, neutral atoms, and/or superconducting qubitsâinto an interconnected, high-performance architecture taking advantage of each modalityâs strengths. This effort seeks to leverage advances in photonic integration and quantum interconnects for reliable communication between diverse qubit species. âWeâre pleased to be selected for DARPAâs HARQ program. IonQâs pioneering quantum interconnect technology can enable modular scalability not only for ion traps, but for a wide range of quantum technologies,â said Niccolo de Masi, Chairman and CEO of IonQ. âWe look forward to collaborating with DARPA to strengthen national security by developing the quantum platform which can serve as a backbone for networking and scaling quantum systems - across qubit types - for advanced public and private sector applications.â IonQâs contribution to the HARQ program focuses on quantum memories, which are the core chips around which IonQâs quantum interconnect systems are built. Fabricated out of quantum-grade synthetic diamond, IonQâs 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 HARQâs ambitious ultimate speed and fidelity targets. IonQâs involvement in HARQ supports the companyâs mission to deliver on its aggressive commercial and technical goals. In 2025, the company achieved a world record 99.99% two-qubit gate fidelity and reached the #AQ 64 milestone on its IonQ Tempo system three months ahead of schedule. In 2025, IonQ also achieved the first qubit to photon frequency conversion in a field deployable system, ensuring real-world quantum networks on existing