Journal ArticleDOI
Energy-Efficient Single Flux Quantum Technology
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TLDR
A novel energy-efficient single flux quantum logic family, ERSFQ/eSFQ, is presented and different superconductor digital technology approaches and logic families addressing this problem are compared.Abstract:
Figures of merit connecting processing capabilities with power dissipated (OpS/Watt, Joule/bit, etc.) are becoming dominant factors in choosing technologies for implementing the next generation of computing and communication network systems. Superconductivity is viewed as a technology capable of achieving higher energy efficiencies than other technologies. Static power dissipation of standard RSFQ logic, associated with dc bias resistors, is responsible for most of the circuit power dissipation. In this paper, we review and compare different superconductor digital technology approaches and logic families addressing this problem. We present a novel energy-efficient single flux quantum logic family, ERSFQ/eSFQ. We also discuss energy-efficient approaches for output data interface and overall cryosystem design.read more
Citations
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Journal ArticleDOI
Energy-Efficient Superconducting Computing—Power Budgets and Requirements
TL;DR: Large-scale computing system characteristics vary by application class, but power and energy use has become a major problem for all classes and superconducting computing may be able to serve the needs of these systems significantly better than conventional technology.
Journal ArticleDOI
An adiabatic quantum flux parametron as an ultra-low-power logic device
TL;DR: 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.
Journal ArticleDOI
Zero Static Power Dissipation Biasing of RSFQ Circuits
TL;DR: Energy-efficient RSFQ (ERSFQ) as discussed by the authors is a resistor-free approach to dc biasing, which does not dissipate energy in the static (non-active) mode and dissipates orders of magnitude less power while operating.
Journal ArticleDOI
Ultralow power artificial synapses using nanotextured magnetic Josephson junctions.
Michael L. Schneider,Christine A. Donnelly,Stephen E. Russek,Burm Baek,Matthew R. Pufall,Peter F. Hopkins,Paul D. Dresselhaus,Samuel P. Benz,William H. Rippard +8 more
TL;DR: A new form of artificial synapse based on dynamically reconfigurable superconducting Josephson junctions with magnetic nanoclusters in the barrier is demonstrated, which provides a significant step toward a neuromorphic platform that is faster, more energy-efficient, and thus can attain far greater complexity than has been demonstrated with other technologies.
Journal ArticleDOI
Implementation of energy efficient single flux quantum digital circuits with sub-aJ/bit operation
TL;DR: The first experimental demonstration of recently proposed single flux quantum logic, eSFQ, is reported, eliminating the dominant static power dissipation associated with a dc bias current distribution and providing over two orders of magnitude efficiency improvement over conventional RSFQ logic.
References
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Journal ArticleDOI
Logical reversibility of computation
TL;DR: This result makes plausible the existence of thermodynamically reversible computers which could perform useful computations at useful speed while dissipating considerably less than kT of energy per logical step.
Journal ArticleDOI
RSFQ logic/memory family: a new Josephson-junction technology for sub-terahertz-clock-frequency digital systems
TL;DR: In this paper, the rapid single-flux-quantum (RSFQ) circuit family is reviewed and a discussion of possible future developments and applications of this novel, ultrafast digital technology is discussed.
Journal ArticleDOI
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.
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Picosecond pulses on superconducting striplines
TL;DR: In this article, the attenuation and phase velocity of a superconducting thin-film stripline are calculated at high frequencies using the theory of Mattis and Bardeen, and the results are used to study the propagation of picosecond pulses which have frequency components approaching the super-conducting energy gap frequency.
Journal ArticleDOI
Zero Static Power Dissipation Biasing of RSFQ Circuits
TL;DR: Energy-efficient RSFQ (ERSFQ) as discussed by the authors is a resistor-free approach to dc biasing, which does not dissipate energy in the static (non-active) mode and dissipates orders of magnitude less power while operating.