Tiny Carbon Rings Enable a New Form of Quantum Control

Carbon nanorings enable a new form of quantum control

Carbon nanorings could generate lossless, switchable toroidal moments, offering a precise way to control quantum states for future quantum computing.

Tiny Carbon Rings Enable a New Form of Quantum Control

Quantum states can be precisely controlled with the help of tiny carbon rings measuring only a few nanometres in size. This is made possible by a class of rarely utilized electromagnetic dipoles called toroidal moments. Using computer simulations, physicists at Martin Luther University Halle-Wittenberg (MLU) have now found a way to generate and control these nanostructures without any loss. The findings create new opportunities for quantum computer technology.