Weyl Fermions Found, a Quasiparticle That Acts Like a Massless Electron

Photo: Danielle Alio/Princeton University

After an 85-year hunt, scientists have detected an exotic particle, the “Weyl fermion,” which they suggest could lead to faster and more efficient electronics and to new types of quantum computing.

Electrons, protons, and neutrons belong to a class of particles known as fermions. Unlike the other major class of particles, the bosons, which include photons, fermions can collide with each other—no two fermions can share the same state at the...

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