A perspective on scaling up quantum computation with molecular spins

Artificial magnetic molecules can contribute to progressing toward large scale quantum computation by (a) integrating multiple resources and (b) reducing the computational costs of some applications. Chemical design, guided theoretical proposals, allows embedding nontrivial functionalities in each molecular unit, which then acts as a microscopic processor able encode error protected logical qubits or implement simulations. Scaling up even further requires “wiring-up” molecules. We discuss how achieve this goal coupling on-chip superconducting resonators. The potential advantages hybrid approach challenges that still lay ahead are critically reviewed.