paper

Hohenberg-Mermin-Wagner-type theorems and dipole symmetry

arXiv:2208.09056 · doi:10.1103/PhysRevB.106.245125

Abstract

We study the possibility of spontaneous symmetry breaking in systems with both charge and dipole symmetries. For -dimensional systems at a positive temperature, we show that charge symmetry cannot be spontaneously broken for , while dipole symmetry cannot be spontaneously broken for . For , we show that charge symmetry cannot be spontaneously broken for if the compressibility is finite. We also show that continuum systems with a dipole symmetry have infinite inertial mass density.

Reworked introduction and added references

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