"Breakthrough in Superconductivity: Andreev Chemistry Creates Isolated Pair States on Nanowires"

Researchers at the University of Basel and Lund University have generated superconducting pair states of electrons on nanowires, separated by barriers. By manipulating the height of the barriers, the researchers observed different types of pair states, including individual Andreev bound states (Andreev atoms), coupled Andreev bound states (Andreev molecules), and fused pair states that conduct electrical current without dissipation (Andreev helium). These findings provide insights for the development of new quantum states and potential applications in quantum computers.