Journal ArticleDOI
An adiabatic quantum flux parametron as an ultra-low-power logic device
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In this article, an ultra-low-power adiabatic quantum flux parametron (QFP) logic is investigated, which has the potential to reduce the bit energy per operation to the order of the thermal energy.Abstract:
Ultra-low-power adiabatic quantum flux parametron (QFP) logic is investigated since it has the potential to reduce the bit energy per operation to the order of the thermal energy. In this approach, nonhysteretic QFPs are operated slowly to prevent nonadiabatic energy dissipation occurring during switching events. The designed adiabatic QFP gate is estimated to have a dynamic energy dissipation of 12% of IcΦ0 for a rise/fall time of 1000 ps. It can be further reduced by reducing circuit inductances. Three stages of adiabatic QFP NOT gates were fabricated using a Nb Josephson integrated circuit process and their correct operation was confirmed.read more
Citations
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Superconductor digital electronics: Scalability and energy efficiency issues (Review Article)
TL;DR: In this paper, the current state of superconductor electronics and fabrication processes are reviewed in order to evaluate whether this electronics is scalable to a very large scale integration (VLSI) required to achieve computation complexities comparable to CMOS processors.
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Beyond Moore's technologies: operation principles of a superconductor alternative.
Igor I. Soloviev,Nikolay V. Klenov,S. V. Bakurskiy,Mikhail Yu. Kupriyanov,Alexander L Gudkov,Anatoli S. Sidorenko +5 more
TL;DR: In this paper, the authors consider operation principles of an energy-efficient superconductor logic and memory circuits with a short retrospective review of their evolution and analyze their shortcomings in respect to computer circuits design.
Journal ArticleDOI
Superconductor Digital Electronics: Scalability and Energy Efficiency Issues
TL;DR: In this paper, the current state of superconductor electronics and fabrication processes are reviewed in order to evaluate whether this electronics is scalable to a very large scale integration (VLSI) required to achieve computation complexities comparable to CMOS processors.
Journal ArticleDOI
Adiabatic quantum-flux-parametron cell library designed using a 10 kA cm−2 niobium fabrication process
Naoki Takeuchi,Naoki Takeuchi,Shuichi Nagasawa,Fumihiro China,Takumi Ando,Mutsuo Hidaka,Yuki Yamanashi,Nobuyuki Yoshikawa +7 more
TL;DR: In this paper, a new AQFP cell library was designed using the AIST 10 kA cm−2 Nb high-speed standard process (HSTP), which is a high-critical-current-density version of the standard process.
Journal ArticleDOI
Quantum-classical interface based on single flux quantum digital logic
Robert McDermott,Maxim Vavilov,Britton Plourde,Frank K. Wilhelm,Per J. Liebermann,Oleg A. Mukhanov,Thomas A. Ohki +6 more
TL;DR: In this article, the authors describe an approach to the integrated control and measurement of a large-scale superconducting multiqubit circuit using a proximal coprocessor based on the Single Flux Quantum (SFQ) digital logic family.
References
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Limits to binary logic switch scaling - a gedanken model
TL;DR: This paper considers computational systems whose material realizations utilize electrons and energy barriers to represent and manipulate their binary representations of state.