Faux particles commit physics faux pas

Quasiparticle known as type-II Weyl fermion violates Lorentz symmetry


WEYL STYLE   In solids, groups of particles can act in concert, behaving like a single, fundamental type of particle, known as a fermion. One such type of quasiparticle, called a type-II Weyl fermion, breaks a fundamental rule of physics called Lorentz symmetry. 


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