SFQ counter-based precomputation for large-scale cryogenic VQE machines
CoRR(2024)
摘要
The variational quantum eigensolver (VQE) is a promising candidate that
brings practical benefits from quantum computing. However, the required
bandwidth in/out of a cryostat is a limiting factor to scale cryogenic quantum
computers. We propose a tailored counter-based module with single flux quantum
circuits in 4-K stage which precomputes a part of VQE calculation and reduces
the amount of inter-temperature communication. The evaluation shows that our
system reduces the required bandwidth by 97
total power consumption is reduced by 93
are executed in parallel on a 10000-qubit machine.
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