Non-Fermi Liquids from Dipolar Symmetry Breaking
- URL: http://arxiv.org/abs/2304.01181v3
- Date: Mon, 30 Oct 2023 18:12:16 GMT
- Title: Non-Fermi Liquids from Dipolar Symmetry Breaking
- Authors: Amogh Anakru, Zhen Bi
- Abstract summary: We study the properties of symmetry-breaking phases of the dipolar symmetries in fermionic models in various spatial dimensions.
The Goldstone modes of the dipolar condensate are strongly coupled to the dispersive fermions and naturally give rise to non-Fermi liquids at low energies.
- Score: 5.644838430210339
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The emergence of fractonic topological phases and novel universality classes
for quantum dynamics highlights the importance of dipolar symmetry in condensed
matter systems. In this work, we study the properties of symmetry-breaking
phases of the dipolar symmetries in fermionic models in various spatial
dimensions. In such systems, fermions obtain energy dispersion through dipole
condensation. Due to the nontrivial commutation between the translation
symmetry and dipolar symmetry, the Goldstone modes of the dipolar condensate
are strongly coupled to the dispersive fermions and naturally give rise to
non-Fermi liquids at low energies. The IR description of the dipolar
symmetry-breaking phase is analogous to the well-known theory of a Fermi
surface coupled to an emergent U(1) gauge field. We also discuss the crossover
behavior when the dipolar symmetry is slightly broken and the cases with
anisotropic dipolar conservation.
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