Asynchrony in Quantum-Dot Cellular Automata Nanocomputation: Elixir or Poison?
Mariagrazia Graziano, Marco Vacca, Davide Blua, Maurizio Zamboni · IEEE Design & Test of Computers · 2011
Editor's note:Emerging computing technologies inherently exhibit high process and timing variation. Many researchers believe that an asynchronous approach is likely to play an enabling role in making these technologies feasible. This article compares the cost and performance of fully synchronous and mixed synchronous-asynchronous implementations of quantum cellular automata, and makes the case that asynchrony is inevitable at the top levels of QCA designs.—Montek Singh, UNC Chapel Hill