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9 papers · 2 filters
Local integrals of motion in the two-site Anderson-Hubbard model
R. Wortis, Malcolm P. Kennett
It has been proposed that the states of fully many-body localized systems can be described in terms of conserved local pseudospins. Due to the multitude of ways to define these, th…
Anisotropy induces non-Fermi-liquid behavior and nematic magnetic order in three-dimensional Luttinger semimetals
Igor Boettcher, Igor F. Herbut
We illuminate the intriguing role played by spatial anisotropy in three-dimensional Luttinger semimetals featuring quadratic band touching and long-range Coulomb interactions. We o…
Phase diagram of electronic systems with quadratic Fermi nodes in : expansion, expansion, and functional renormalization group
Lukas Janssen, Igor F. Herbut
Several materials in the regime of strong spin-orbit interaction such as HgTe, the pyrochlore iridate PrIrO, and the half-Heusler compound LaPtBi, as well as various sy…
Transient terahertz photoconductivity of insulating cuprates
J. C. Petersen, A. Farahani, D. G. Sahota +2
We establish a detailed phenomenology of photocarrier transport in the copper oxide plane by studying the transient terahertz photoconductivity of SrCuOCl and YBaCu…
Gauge-field-assisted Kekulé quantum criticality
Michael M. Scherer, Igor F. Herbut
We study the quantum phase transition of - charged Dirac fermions Yukawa-coupled to the Kekulé valence bond solid order parameter with symmetry of the honeycomb lattic…
Electronic instabilities of the extended Hubbard model on the honeycomb lattice from functional renormalization
Yanick Volpez, Daniel D. Scherer, Michael M. Scherer
Interacting fermions on the half-filled honeycomb lattice with short-range repulsions have been suggested to host a variety of interesting many-body ground states, e.g., a topologi…