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 were published in the journal npj Computational Materials ("Topology-enabled quantum toroidal moment in carbon nanotori") and create new opportunities for quantum computer technology.
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