Impact of Molecular Electrostatics on Field-Coupled Nanocomputing and Quantum-Dot Cellular Automata Circuits
| Autor: | Yuri Ardesi, Giuliana Beretta, Marco Vacca, Gianluca Piccinini, Mariagrazia Graziano |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
quasi-physical molecular circuit simulation
TK7800-8360 Computer Networks and Communications Hardware and Architecture Control and Systems Engineering molecular electronics Signal Processing molecular Field-Coupled Nanocomputing Quantum-dot Cellular Automata QCA energy analysis Electrical and Electronic Engineering Electronics |
| Zdroj: | Electronics; Volume 11; Issue 2; Pages: 276 Electronics, Vol 11, Iss 276, p 276 (2022) |
| ISSN: | 2079-9292 |
| DOI: | 10.3390/electronics11020276 |
| Popis: | The molecular Field-Coupled Nanocomputing (FCN) is a promising implementation of the Quantum-dot Cellular Automata (QCA) paradigm for future low-power digital electronics. However, most of the literature assumes all the QCA devices as possible molecular FCN devices, ignoring the molecular physics. Indeed, the electrostatic molecular characteristics play a relevant role in the interaction and consequently influence the functioning of the circuits. In this work, by considering three reference molecular species, namely neutral, oxidized, and zwitterionic, we analyze the fundamental devices, aiming to clarify how molecule physics impacts architectural behavior. We thus examine through energy analysis the fundamental cell-to-cell interactions involved in the layouts. Additionally, we simulate a set of circuits using two available simulators: SCERPA and QCADesigner. In fact, ignoring the molecular characteristics and assuming the molecules copying the QCA behavior lead to controversial molecular circuit proposals. This work demonstrates the importance of considering the molecular type during the design process, thus declaring the simulators working scope and facilitating the assessment of molecular FCN as a possible candidate for future digital electronics. |
| Databáze: | OpenAIRE |
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