DARPA (MTO): Heterogeneous Architectures for Quantum (HARQ)

DARPA is soliciting proposals towards the realization of heterogeneous quantum computing architectures. Proposed research should investigate innovative approaches that enable revolutionary advances in theory, devices, and system concepts for quantum interconnects, quantum circuit compilers, distributed algorithms, resource estimation, quantum memory/repeater devices, quantum frequency converters, microwave-to-optical transducers, and other elements at the intersection of hardware and software in the quantum computing stack.

TA1: Multi-qubit Optimized Software Architecture through Interconnected Compilation (MOSAIC)

TA2: Quantum Shared Backbone (QSB)

Funding: $2,000,000 total 

Duration: 1 year + 9 months 

Research Authority due date: 21.8.25

Abstract (required) due date: 28.8.25

Full proposal due date: 14.10.25