An adiabatic superconductor 8-bit adder with 24<i>k</i>B<i>T</i> energy dissipation per junction

Takeuchi, Naoki; Yamae, Taiki; Ayala, Christopher L.; Suzuki, Hideo; Yoshikawa, Nobuyuki

doi:10.1063/1.5080753

Cited by 53 publications

(34 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…6 denote the energy-delay product (EDP) of each logic family. The two blue solid lines are for AQFP logic; one represents the EDP based on an 8-bit carry look-ahead adder with Jc = 10 kA/cm 2 [61] and the other represents the EDP based on a buffer with Jc = 2.5 kA/cm 2 [53]. AQFP logic can operate with much less energy dissipation than the other logic families, and furthermore, the energy dissipation is close to the thermodynamic and quantum limits, where the quantum limit corresponds to the Planck constant.…”

Section: Adiabatic Quantum-flux-parametron (Aqfp)mentioning

confidence: 99%

Adiabatic Quantum-Flux-Parametron: A Tutorial Review

Takeuchi

Yamae

Ayala

et al. 2022

IEICE Trans. Electron.

Self Cite

View full text Add to dashboard Cite

The adiabatic quantum-flux-parametron (AQFP) is an energy-efficient superconductor logic element based on the quantum flux parametron. AQFP circuits can operate with energy dissipation near the thermodynamic and quantum limits by maximizing the energy efficiency of adiabatic switching. We have established the design methodology for AQFP logic and developed various energy-efficient systems using AQFP logic, such as a low-power microprocessor, reversible computer, single-photon image sensor, and stochastic electronics. We have thus demonstrated the feasibility of the wide application of AQFP logic in future information and communications technology. In this paper, we present a tutorial review on AQFP logic to provide insights into AQFP circuit technology as an introduction to this research field. We describe the historical background, operating principle, design methodology, and recent progress of AQFP logic.

show abstract

Section: Adiabatic Quantum-flux-parametron (Aqfp)mentioning

confidence: 99%

Adiabatic Quantum-Flux-Parametron: A Tutorial Review

Takeuchi

Yamae

Ayala

et al. 2022

IEICE Trans. Electron.

Self Cite

View full text Add to dashboard Cite

show abstract

“…DICE provides a promising solution for these limitations by building complex computing from simple low gate-count nodes and making better use of cryogenic refrigerator volumes with its 3D scaling. It has been shown that 8-bit superconducting ALUs can operate at 5 Ghz with 1.4 aJ power dissipation [8]. Extrapolating this to a custom Super-DICE node, a chip with O(10 4 ) Josephson junctions operating at 5GHz would require roughly 10 nW per operation.…”

Section: Projectionsmentioning

confidence: 99%

Discrete Integrated Circuit Electronics (DICE)

Fredin

Zemanek

Blackburn

et al. 2020

2020 IEEE High Performance Extreme Computing Conference (HPEC)

View full text Add to dashboard Cite

We introduce DICE (Discrete Integrated Circuit Electronics). Rather than separately develop chips, packages, boards, blades, and systems, DICE spans these scales in a direct-write process with the three-dimensional assembly of computational building blocks. We present DICE parts, discuss their assembly, programming, and design workflow, illustrate applications in machine learning and high performance computing, and project performance.

show abstract

“…The major advantage of AQFP is the remarkable energy efficiency potential. A latest work 10 analyzed the energy dissipation of an 8-bit AQFP adder and reported a 24 k B T energy dissipation per junction based on the physical test. This number indicates that AQFP technology is a promising candidate to build low-energy systems approaching Landauder’s limit 11–14 .…”

Section: Introductionmentioning

confidence: 99%

Adiabatic Quantum-Flux-Parametron: Towards Building Extremely Energy-Efficient Circuits and Systems

Chen

Cai

Wang

et al. 2019

Sci Rep

Self Cite

View full text Add to dashboard Cite

Adiabatic Quantum-Flux-Parametron (AQFP) logic is an adiabatic superconductor logic family that has been proposed as a future technology towards building extremely energy-efficient computing systems. In AQFP logic, dynamic energy dissipation can be drastically reduced due to the adiabatic switching operations using AC excitation currents, which serve as both clock signals and power supplies. As a result, AQFP could overcome the power/energy dissipation limitation in conventional superconductor logic families such as rapid-single-flux-quantum (RSFQ). Simulation and experimental results show that AQFP logic can achieve an energy-delay-product (EDP) near quantum limit using practical circuit parameters and available fabrication processes. To shed some light on the design automation and guidelines of AQFP circuits, in this paper we present an automatic synthesis framework for AQFP and perform synthesis on 18 circuits, including 11 ISCAS-85 circuit benchmarks, 6 deep-learning accelerator components, and a 32-bit RISC-V ALU, based on our developed standard cell library of AQFP technology. Synthesis results demonstrate the significant advantage of AQFP technology. We forecast 9,313×, 25,242× and 48,466× energy-per-operation advantage, compared to the synthesis results of TSMC (Taiwan Semiconductor Manufacturing Company) 12 nm fin field-effect transistor (FinFET), 28 nm and 40 nm complementary metal-oxide-semiconductor (CMOS) technology nodes, respectively.

show abstract

An adiabatic superconductor 8-bit adder with 24kBT energy dissipation per junction

Cited by 53 publications

References 30 publications

Adiabatic Quantum-Flux-Parametron: A Tutorial Review

Adiabatic Quantum-Flux-Parametron: A Tutorial Review

Discrete Integrated Circuit Electronics (DICE)

Adiabatic Quantum-Flux-Parametron: Towards Building Extremely Energy-Efficient Circuits and Systems

Contact Info

Product

Resources

About