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Inter-Temperature Bandwidth Reduction in Cryogenic QAOA Machines | IEEE Journals & Magazine | IEEE Xplore

Inter-Temperature Bandwidth Reduction in Cryogenic QAOA Machines


Abstract:

The bandwidth limit between cryogenic and room-temperature environments is a critical bottleneck in superconducting noisy intermediate-scale quantum computers. This paper...Show More

Abstract:

The bandwidth limit between cryogenic and room-temperature environments is a critical bottleneck in superconducting noisy intermediate-scale quantum computers. This paper presents the first trial of algorithm-aware system-level optimization to solve this issue by targeting the quantum approximate optimization algorithm. Our counter-based cryogenic architecture using single-flux quantum logic shows exponential bandwidth reduction and decreases heat inflow and peripheral power consumption of inter-temperature cables, which contributes to the scalability of superconducting quantum computers.
Published in: IEEE Computer Architecture Letters ( Volume: 23, Issue: 1, Jan.-June 2024)
Page(s): 9 - 12
Date of Publication: 09 October 2023

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