Quantum computers powered by hundreds of gate based, superconducting qubits are just over the horizon. Several groups have already announced activities on quantum processors (QP) of 50 qubits or more. The systems containing these processors will be of fundamental importance in quantum algorithm development, on our path toward quantum advantage in the noisy intermediate scale quantum (NISQ) era. Quantum advantage is the point at which quantum computers can solve a problem faster, cheaper, or more accurately than their classical counterparts, which is likely to be accomplished before fully fault tolerant machines are available. This talk will address the trade-offs in the design of hybrid quantum-classical computing systems based on gate based superconducting processors approaching 100 qubits.
Matt Reagor is an experimental physicist and product lead at Rigetti Quantum Computing. His team is developing next-generation superconducting processors for cloud-programmable quantum computers, including the thirty two qubit backend available now on Amazon's AWS and Rigetti cloud services. Prior to Rigetti, Matt earned a PhD in the Schoelkopf Lab at Yale on the first millisecond quantum memory for superconducting qubits.