Collective waves of electron spins, highly efficient/ generating almost no heat, can now be optically read/ converted into electrical signals

https://www.eurekalert.org/news-releases/1120476

"Magneto-optical translation using THz light: spin waves (magnons) imprint their magnetic information onto/ convert into light signal, which is then coupled to electrons creating electrical charge, allowing ultra-fast, low-heat spintronic processors to communicate with standard computers... moves through material without a flow of particles and thus without friction/resistance, enabling high-performance computing that doesn't require massive cooling systems"