Rigetti also said it deployed multiple systems to the cloud, including an 84-qubit monolithic chip system and a 36-qubit chiplet-based system, and “demonstrated that chiplet tiling works in practice.” Management argued chiplets are necessary because scaling to thousands of qubits on a single die “is not realistic.”Kulkarni highlighted a prototype result using what he described as Rigetti’s proprietary adiabatic CZ scheme, where the company achieved 2-qubit gate fidelity “as high as 99.9%” at a 28-nanosecond ...