Quantum-dot cellular automata
Lent, Craig S. University of Notre Dame, South Bend, Indiana.
- Principle of operation
- Realizations of devices and circuits
- Metal-dot QCA
- Molecular QCA
- Power gain and dissipation
- Links to Primary Literature
- Additional Readings
Quantum-dot cellular automata (QCA) are a transistorless approach to carrying out digital computing with nanoscale devices. The QCA cell is a structure comprising a small number of locations called dots, which can hold electrons, and the arrangement of charge among these dots represents binary information. Because no electric current flows from cell to cell, the QCA approach constitutes a radical departure from conventional electronics, one which may prove more suitable for computing at the nanometer and molecular scales.
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