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Résumé |
In theories with conserved dipole moment, isolated charged particles (fractons)
are immobile, but dipoles can move. We couple these dipoles to the fracton gauge
theory and analyze the universal infrared structure. This uncovers an observable
double-kick memory effect which we relate to a novel dipole soft theorem. Together
with their asymptotic symmetries, this constitutes the first realization of an
infrared triangle beyond Lorentz symmetry. This demonstrates the robustness of
these IR structures and paves the way for their investigation in condensed matter
systems and beyond. |
