Modelling Techniques for Simulating Large QCA Circuits

摘要: In the past several years, incredible advances in availability of nano fabrication processes have been witnessed, and demonstrated molecular-scale production beyond usable limit for CMOS process technology. This has led to research early development a wide-range novel computing paradigms at nanoscale; amongst them, quantum dot cellular automata (QCA). QCA is nanoelectronic paradigm which an array cells, each electrostatically interacting with its neighbors, employed locally interconnected manner implement general purpose digital circuits. Several proof-of-concept devices fabricated using silicon-on-insulator (SOI), metallic island operating Coulomb blockade regime, nano-magnetics. recent into implementing these single molecules also begun generate significant interest, most recently, it was that silicon atom dangling bonds (DBs), on otherwise hydrogen terminated crystal surface, can serve as dots.