Speaker
Andrew Bestwick
(Rigetti)
Description
Rigetti Computing's QPU roadmap projects scaling to large systems by lateral tiling of many individual superconducting qubit chips in a multi-die assembly. Each chip in the assembly, meanwhile, has a dense array of qubits and tunable couplers with 3D signalling. This talk will discuss the challenges of engineering such a QPU to have long coherence times, fast control, and strong qubit-qubit interactions while maintaining scalability. In particular, it will cover strategies for mitigating the additional loss channels introduced by the high density of signal lines needed for fast operation of Rigetti's circuit architecture.
