Quantum-dot fabrication and characterization is a well-established
technology, which is used in photonics, quantum optics and nanoelectronics.
Four quantum-dots placed at the corners of a square form a unit cell, which can
hold a bit of information and serve as a basis for Quantum-dot Cellular
Automata (QCA) nanoelectronic circuits. Although several basic QCA circuits
have been designed, fabricated and tested, proving that quantum-dots can form
functional, fast and low-power nanoelectornic circuits, QCA nanoelectronics
still remain at its infancy. Read More