Antiferromagnet information technology/ optical communication 1,000X faster than today’s ferromagnetic technologies

https://www.eurekalert.org/news-releases/1120096

"manipulating antiferromagnetic states using intense light pulses to process information trillionth of second timescales... antiferromagnets do not have net external magnetic field, so less susceptible to external interference/ allows for much denser information storage... exceptionally strong coupling between light/ antiferromagnets that can be switched or controlled using light pulses or mechanical strain... quantum/ optical computing, reading/ writing with light"