The researchers in the Quantum Detection Microscopy group at CIC nanoGUNE, in collaboration with chemists at CiQUS of the University of Santiago de Compostela, have demonstrated that adding or removing a single molecule from a quantum chain can fundamentally change its interaction with a superconductor.
The key lies in a property as simple as parity—that is, whether the chain contains an even or odd number of units. While chains with an odd number interact magnetically with the superconductor, those with an even number do not. The results of this study have been published in the journal Nature.








