Realistic solid-state model brings fractons in quantum spin liquids closer to detection

Quasiparticles arise from the complex interaction of many particles in solids; for example, we describe lattice vibrations in crystals as phonons. Fractons are exotic quasiparticles that occur at the vertices of magnetic domain walls between different spin orders. What makes them special is that they are virtually immobile and can only be displaced by other fractons. In theory, this limited mobility could be exploited to robustly store quantum information.

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