Open AccessEnergy dissipation of quantum‐dot cellular automata logic gates
Author(s) -
Rahimi Ehsan
Publication year - 2016
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2015.0535
Subject(s) - quantum dot cellular automaton , quantum cellular automaton , dissipation , logic gate , cellular automaton , nanoelectronics , quantum dot , physics , charge (physics) , and or invert , truth table , topology (electrical circuits) , and gate , quantum gate , computer science , quantum mechanics , quantum , quantum computer , logic family , algorithm , nanotechnology , logic synthesis , electrical engineering , materials science , engineering
Quantum‐dot cellular automata (QCA) is a new paradigm in nanoelectronics, where binary information is represented by charge configuration in cells. Ideal QCA logic gates are thought to be dissipationless, since there is no intercell charge transfer and no current flows out of cells. This work presents that these gates dissipate energy and compare energy consumptions of conventional QCA logic gates in electrostatic and thermodynamic approaches. The results show that increasing the number of inputs, concentration of the geometry and the unbalanced numbers of ‘0’ and ‘1’ output states in the gate's truth table add to the energy dissipation of a QCA gate.