An unbiased large-N expansion for vestigial orders in density-wave and superconducting systems resolves decoupling ambiguities from symmetry redundancies and reveals generic parameter regions without stable vestigial phases.
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Projective symmetry in hexagonal lattices with rational magnetic flux enforces novel non-zero-energy Dirac touchings at pi flux, constrains zero-energy Dirac points for general fluxes, and imposes distinct Chern number rules on gapped bands and multiplets.
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Unbiased large-$N$ approach to competing vestigial orders of density-wave and superconducting instabilities
An unbiased large-N expansion for vestigial orders in density-wave and superconducting systems resolves decoupling ambiguities from symmetry redundancies and reveals generic parameter regions without stable vestigial phases.
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Topological constraints on the electronic band structure of hexagonal lattice in a magnetic field
Projective symmetry in hexagonal lattices with rational magnetic flux enforces novel non-zero-energy Dirac touchings at pi flux, constrains zero-energy Dirac points for general fluxes, and imposes distinct Chern number rules on gapped bands and multiplets.