Control Circuits for Superconducting Qubits:

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  • 超伝導量子ビット用制御回路
  • Recent Progress and Challenges
  • ―現状と課題―

Abstract

<p>To build large-scale superconducting quantum computers, it is crucial to develop cryogenic qubit controllers that can manipulate many qubits inside a dilution refrigerator. In this paper, we report the recent progress and challenges of qubit controllers. Specifically, we review various qubit controllers composed of cryogenic complementary metal-oxide-semiconductor (cryo-CMOS) logic and superconductor logic (such as single-flux-quantum logic and adiabatic quantum-flux-parametron logic). A detailed comparison of the qubit controllers reveals the advantages and disadvantages of each controller and indicates future challenges for both cryo-CMOS and superconductor logic-based controllers.</p>

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