HARQ (Heterogeneous Architectures for Quantum)

Cisco's research prototype and DARPA's 19-team backbone program together define what the first-generation network layer of a quantum-classical hybrid actually looks like, and what still doesn't work.

DARPA's new HARQ program funds 19 teams to build a heterogeneous quantum computer that mixes trapped-ion, neutral-atom, superconducting, and diamond qubits over a shared photonic backbone, targeting a 1,000x cut in physical resource demand.