techexplorist12h
A particle that’s massless when moving in one direction but has a mass in the other direction
Scientists first suggested a type of particle called a semi-Dirac fermion 16 years ago. They thought these particles could ...
The Debrief56m
Physicists Baffled by Odd Quasiparticle That Seems to Have No Mass—Until It Changes Direction
Scientists have observed a quasiparticle that exhibits a very odd behavior: it appears to have mass, but only while moving in ...