Researchers at the University of Cambridge, University of Manchester, University of Oxford, Swansea University, Jilin University, University of Namur, University of Mons, Donostia International Physics Centre, University of Würzburg have developed a way to control the interaction of light and quantum 'spin' in organic semiconductors, that even works at room temperature.
The international team of researchers has found a way to use particles of light as a 'switch' that can connect and control the spin of electrons, making them behave like tiny magnets that could be used for quantum applications. The researchers designed modular molecular units connected by tiny 'bridges'. Shining a light on these bridges allowed electrons on opposite ends of the structure to connect to each other by aligning their spin states. Even after the bridge was removed, the electrons stayed connected through their aligned spins.