Adiabatic Quantum Flux Parametrons
Invited-In-person · Invited · Withdrawn
Abstract
Adiabatic quantum-flux-parametron (AQFP) logic is a superconducting logic technology that achieves extremely high energy efficiency by operating high-speed, low-power superconducting circuits adiabatically and slowly. Owing to its ultralow power dissipation, AQFP logic is expected to be applied to high-performance computing systems as well as to the control and readout of superconducting qubits.
In this talk, I will introduce three logic styles that have been developed based on AQFP and describe their current research and development status. The first is conventional AQFP logic using AQFP majority gates, for which microprocessors and qubit-control circuits have been developed. The second is a dual-rail direct-coupled logic style, which can completely suppress the input-dependent nonadiabatic energy dissipation observed in conventional AQFP logic. The third is reversible AQFP logic, which preserves entropy during computation and therefore enables logic operations with energy dissipation below the Landauer limit.
This talk will discuss the energy dissipation and circuit complexity of these logic styles.
In this talk, I will introduce three logic styles that have been developed based on AQFP and describe their current research and development status. The first is conventional AQFP logic using AQFP majority gates, for which microprocessors and qubit-control circuits have been developed. The second is a dual-rail direct-coupled logic style, which can completely suppress the input-dependent nonadiabatic energy dissipation observed in conventional AQFP logic. The third is reversible AQFP logic, which preserves entropy during computation and therefore enables logic operations with energy dissipation below the Landauer limit.
This talk will discuss the energy dissipation and circuit complexity of these logic styles.
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Presenters
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Nobuyuki Yoshikawa
- Yokohama National University