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Author Schulhof, Gabriel ♦ Walus, Konrad ♦ Jullien, Graham A.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Copyright Year ©2007
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword QCA ♦ Quantum-dot cellular automata ♦ Fabrication variances ♦ Fault tolerance
Abstract We analyze the behavior of quantum-dot cellular automata (QCA) building blocks in the presence of random cell displacements. The QCA cells are modeled using the coherence vector description and simulated using QCADesigner. We evaluate various fundamental circuits: the wire, the inverter, the majority gate, and the two-wire crossing approaches: the coplanar crossover and the multilayer crossover. Our results show that different building blocks have different displacement tolerances. The coplanar crossover and inverter perform the weakest. The wire is the most robust. We have found displacement tolerances to be a function of circuit layout and geometry rather than cell size.
ISSN 15504832
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2007-04-01
Publisher Place New York
e-ISSN 15504840
Journal ACM Journal on Emerging Technologies in Computing Systems (JETC)
Volume Number 3
Issue Number 1


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Source: ACM Digital Library