Demonstration of a quantum cellular automata cell in a GaAs∕AlGaAs heterostructure
- 16 July 2007
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 91 (3)
- https://doi.org/10.1063/1.2759257
Abstract
The authors report on the experimental demonstration of a GaAs∕AlGaAs-based quantum cellular automata cell fabricated using electron beam lithographically defined gates. These surface metallic gates form a pair of double quantum dots, as well as a pair of quantum point contacts (QPCs) that act as noninvasive voltage probes. Measurements at cryogenic temperatures show that an electron transfer in the input dots induces the relocation of a single electron in the output dots. Using the QPCs they were also able to determine the operating limits of the cell.Keywords
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