Silicon Atomic Quantum Dots Enable Beyond-CMOS Electronics

We review our recent efforts in building atom-scale quantum-dot cellular automata circuits on a silicon surface. Our building block consists of silicon dangling bond on a H-Si(001) surface, which has been shown to act as a quantum dot. First the fabrication, experimental imaging, and charging charac...

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Bibliographic Details
Published in:arXiv.org 2013-12
Main Authors: Wolkow, Robert A, Livadaru, Lucian, Pitters, Jason, Taucer, Marco, Piva, Paul, Salomons, Mark, Cloutier, Martin, Martins, Bruno V C
Format: Article
Language:English
Subjects:
Automata theory
Cellular automata
CMOS
Optical properties
Quantum computing
Quantum dots
Silicon
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Summary:We review our recent efforts in building atom-scale quantum-dot cellular automata circuits on a silicon surface. Our building block consists of silicon dangling bond on a H-Si(001) surface, which has been shown to act as a quantum dot. First the fabrication, experimental imaging, and charging character of the dangling bond are discussed. We then show how precise assemblies of such dots can be created to form artificial molecules. Such complex structures can be used as systems with custom optical properties, circuit elements for quantum-dot cellular automata, and quantum computing. Considerations on macro-to-atom connections are discussed.
ISSN:2331-8422