A Haldane phase in a one-dimensional topological Kondo insulator

ALEJANDRO LOBOS; CLAUDIO GAZZA; ALEJANDRO MEZIO; ARIEL DOBRY

Praga

Conferencia; International Conference on Strongly Correlated Electron Systems, SCES; 2018

A recent "toy model" has been introduced to describe a one-dimensional topological Kondo insulator We study the ground state properties by means of the Density matrix renormaliztion group (DMRG) method and show that the system realizes a Haldane phase This "toy model" could be experimentally implemented in ultracold atoms experiments. We had established an unexpected conection between topological Kondoinsulators and the Haldane phase The mean-field approach, widely used in this theoretical systems, does not capture the complexity of the groundstate in 1D interacting topological insulators One-dimensional topological Kondo insulators must be reconsidered from the perspective of interacting symmetry-protected topological phases The p-wave Kondo Heisenberg Model could be experimentally implemented in p-band optical lattices loaded with ultracold Fermi gases.