In this project, our primary objective is to advance the development of a modular multi-chip Quantum Processing Unit (QPU) utilizing superconducting qubit technology. The urgency of pursuing this modular QPU architecture has grown, as the current research trajectory, concentrating on consolidating all superconducting qubits onto a single chip, is nearing completion.
With an increase in the number of qubits, the probability of encountering malfunctions in Josephson Junctions also rises. This imminent challenge prompts a shift within the scientific community and industry from a single chip approach to embracing a modular multi-chip QPU.
However, achieving this objective will require a thorough redesign of our QPU. On the QPU design front, our research question revolves around exploring optimal connectivity among qubits positioned on distinct chips by developing novel architecture. Simultaneously, from the hardware perspective, our focus will be on the fabrication, and packaging of this modular Quantum Processing Unit (QPU) in alignment with the proposed architecture.