Researchers create a mechanically tunable graphene quantum
dot

Precisely manipulating individual charge carriers is a
cornerstone for single-electron transistors and for electronic
devices of the future, including solid-state quantum bits (qubits).
Quantum dots (QDs) are at the heart of these devices. In a recent
Nano Letters paper, researchers at Delft University of Technology
(TU Delft) present the first mechanically tunable monolayer
graphene QD whose electronic properties can be modified by in-plane
nanometer displacements.