1,720,963 research outputs found
Analysis of polarization propagation along a semiconductor-based quantum cellular automaton chain
No full textTheoretical analysis and numerical simulation of intramolecular barriers in polyphenyl-based molecular devices
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Hierarchical tools for the simulation of nanoscale circuits and devices: from artificial to real molecules RID C-4866-2008
No full textThe authors discuss the importance of hierarchical modelling for the evaluation of nanoelectronic architectures, with specific reference to quantum cellular automata and molecular devices. Models at different levels of approximation are presented, focusing on their interrelationships and possibilities of further integration
Analysis of Electron Transfer in Substituted Biphenylmethane
No full textWe present an analysis of electron transfer in a molecular structure containing two phenyl rings connected by a methylene barrier, with the addition of a donor group (NH2) on one ring and an acceptor group (NO2) on the other. Such molecules are among those currently being considered for the implementation of molecular circuits for information processing. We have performed both a study of the response of electron polarization to the application of an external electrostatic perturbation, and an analysis of the time-dependent behavior of electron transfer across the barrier. A detailed evaluation of the electron affinity and of the ionization energy of the molecular structure under investigation has also been performed, obtaining results that show the inadequacy of representations in terms of simple HOMO and LUMO orbitals
Challenges in the Simulation of Logic Gatesand Circuits Based on the Quantum Cellular Automaton (QCA) Concept
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