Structural distortions in molecular-based quantum cellular automata: a minimal model based study

Literature Information

Publication Date 2014-07-11
DOI 10.1039/C4CP02458C
Impact Factor 3.676
Authors

Rafael Gutierrez, Daijiro Nozaki, Alessandro Paolo Bramanti


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Abstract

Molecular-based quantum cellular automata (m-QCA), as an extension of quantum-dot QCAs, offer a novel alternative in which binary information can be encoded in the molecular charge configuration of a cell and propagated via nearest-neighbor Coulombic cell窶田ell interactions. Appropriate functionality of m-QCAs involves a complex relationship between quantum mechanical effects, such as electron transfer processes within the molecular building blocks, and electrostatic interactions between cells. The influence of structural distortions of single m-QCA are addressed in this paper within a minimal model using an diabatic-to-adiabatic transformation. We show that even small changes of the classical square geometry between driver and target cells, such as those induced by distance variations or shape distortions, can make cells respond to interactions in a far less symmetric fashion, modifying and potentially impairing the expected computational behavior of the m-QCA.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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