Operation of Quantum Cellular Automaton cells with more than two electrons

Details Operation of Quantum Cellular Automaton cells with more than two electrons Operation of Quantum Cellular Automaton cells with more than two electrons

1999-09-16

arxiv.org/abs/cond-mat/9909244v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures included, submitted to APL

Scientific paper

10.1063/1.125276

We present evidence that operation of QCA (Quantum Cellular Automaton) cells with four dots is possible with an occupancy of 4N+2 electrons per cell (N being an integer). We show that interaction between cells can be described in terms of a revised formula for cell polarization, which is based only on the difference between diagonal occupancies. We validate our conjectures with full quantum simulations of QCA cells for a number of electrons varying from 2 to 6, using the Configuration-Interaction method.

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