Bistable saturation in coupled quantum dots for quantum cellular automata
- 15 February 1993
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 62 (7) , 714-716
- https://doi.org/10.1063/1.108848
Abstract
A simple model quantum dot cell containing two electrons is analyzed as a candidate for quantum cellular automata implementations. The cell has eigenstates whose charge density is strongly aligned along one of two directions. In the presence of the electrostatic perturbation due to a neighboring cell, the ground state is nearly completely aligned (polarized) in one direction only. The polarization is a highly nonlinear function of the perturbing electrostatic fields and shows the strong bistable saturation important for cellular automation function.Keywords
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