(Or "quantum dot cell") A structure comprising four quantum dots arranged in a square, with two diagonally opposed dots containing electron charges. One diagonal containing charges is arbitrarily defined as representing a value of ' 1' , the other as ' 0' . In a five-dot cell, the fifth, central dot contains no charge. See also: quantum cell wire, quantum-dot cellular automata. . ["Quantum Dot Heterostructures", D. Bimberg, et al, John Wiley & Sons Ltd., Dec 1998]. [Implementations?] (2001-07-17)
