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Researchers Take First Look into the “Eye” of Majoranas

Majorana fermions are particles that could potentially be used as information units for a quantum computer.

An experiment by physicists at the Swiss Nanoscience Institute and the University of Basel’s Department of Physics has confirmed their theory that Majorana fermions can be generated and measured on a superconductor at the end of wires made from single iron atoms. The researchers also succeeded in observing the wave properties of Majoranas and, therefore, in making the interior of a Majorana visible for the first time. The results were published in the Nature journal npj Quantum Information.

Atomic force microscopy image of the end of a mono-atomic iron wire. The individual iron atoms are clear to see, as well as the “eye” of the Majorana fermions on the end. (Image: University of Basel, Department of Physics)