Figure 1.

Ternary quantum-dot cell (tQCA cell) ground states. In the case of an isolated tQCA cell, a circular arrangement of quantum dots with two mobile electrons, there are four electron arrangements that ensure their maximal separation thus achieving a ground state. They are marked A, B, C and D and can be mapped to balanced ternary values -1, 0, and 1.

Bajec and Pečar Nanoscale Research Letters 2012 7:221   doi:10.1186/1556-276X-7-221
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