Presentation 2013-07-22
Evaluation of Energy Dissipation and Bit-Error-Rate of Adiabatic Quantum-Flux-Parametron Logic with Under-Damped Junctions
Naoki TAKEUCHI, Yuki YAMANASHI, Nobuyuki YOSHIKAWA,
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Abstract(in English) Adiabatic quantum-flux-parametron (AQFP) logic is ultimately energy-efficient. The bit energy and bit-error-rate (BER) of AQFP gates with under-damped Josephson junctions were simulated. The results indicate that the bit energy reaches 12 yJ, which is only 20% of the thermal energy at 4.2 K, using unshunted 50 μA junctions and excitation currents with a rise/fall time of 2000 ps. Although the bit energy is extremely small, the bias margin, where the BER is less than 10^<-23>, is approximately ±22%. These results confirm there is no minimum energy limitation for the operation of AQFP gates unless the entropy of the system decreases.
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Keyword(in English) QFP / adiabatic circuits / low power / bit energy
Paper # SCE2013-13
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Committee SCE
Conference Date 2013/7/15(1days)
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Registration To Superconductive Electronics (SCE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Evaluation of Energy Dissipation and Bit-Error-Rate of Adiabatic Quantum-Flux-Parametron Logic with Under-Damped Junctions
Sub Title (in English)
Keyword(1) QFP
Keyword(2) adiabatic circuits
Keyword(3) low power
Keyword(4) bit energy
1st Author's Name Naoki TAKEUCHI
1st Author's Affiliation Dept. of Electrical and Computer Engin., Yokohama National University()
2nd Author's Name Yuki YAMANASHI
2nd Author's Affiliation Dept. of Electrical and Computer Engin., Yokohama National University
3rd Author's Name Nobuyuki YOSHIKAWA
3rd Author's Affiliation Dept. of Electrical and Computer Engin., Yokohama National University
Date 2013-07-22
Paper # SCE2013-13
Volume (vol) vol.113
Number (no) 149
Page pp.pp.-
#Pages 6
Date of Issue