5 papers
Localization and Topological Properties of SU(3) Fermions in non-Abelian Gauge Fields: Color-Orbit Coupling and Color-Flip Fields
Bar Alluf, C. A. R. Sá de Melo
The interplay between disorder, gauge fields, and internal degrees of freedom fundamentally affects localization and topological properties of quantum many-body systems. Motivated…
Inverse supersymmetry in finite temperature Bose-Fermi mixtures
Zachary Gazzillo, Carlos A. R. Sá de Melo
We investigate nearly degenerate Bose-Fermi mixtures and show that the breaking of generalized supersymmetry (gSUSY) between bosons and fermions, with up to two internal states, ma…
Equal-spin and opposite-spin density-density correlations in the BCS-BEC crossover: Gauge Symmetry, Pauli Exclusion Principle, Wick's Theorem and Experiments
Nikolai Kaschewski, Axel Pelster, Carlos A. R. Sá de Melo
We develop a general theory of spin-dependent density-density correlations, that is valid for any temperature, interactions, dimensions and mass or population status of Fermi gases…
Weighted Hartree-Fock-Bogoliubov method for interacting fermions: An application to ultracold Fermi superfluids
Nikolai Kaschewski, Axel Pelster, Carlos A. R. Sá de Melo
For several decades it has been known that divergences arise in the ground-state energy and chemical potential of unitary superfluids, where the scattering length diverges, due to…
Topological two-band electron-hole superconductors with -wave symmetry: Absence of Dirac quasiparticle annihilation in magic-angle twisted trilayer graphene
Senne Van Loon, Carlos A. R. Sa de Melo
We discuss a two-band model for two-dimensional superconductors with electron and hole bands separated by an energy gap and singlet -wave pairing in each band. This type of mode…