Erlangen 2018 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 41: Poster Session IIIa

A 41.1: Poster

Donnerstag, 8. März 2018, 16:15–18:15, Orangerie

Competing magnetic orders in the fermionic SU(3) Hubbard model with non-Abelian gauge-fields — •Mohsen Hafez-Torbati and Walter Hofstetter — Goethe-Universität, 60438 Frankfurt am Main, Germany

Ultracold fermionic alkaline-earth atoms loaded into optical lattices provide a unique possibility to study not only exotic multi-flavour magnetism, valence-bond-solid states, and quantum spin-liquid phases but also the effect of spin-orbit coupling and the topological properties in multi-component fermionic systems. Here we present results on long-range magnetic order in the large-U limit of the SU(3) fermionic Hubbard model under a uniform non-Abelian gauge field obtained by using the real-space implementation of dynamical mean-field theory. We show the competition between different two-sublattice and three-sublattice magnetic orders in the SU(3) Hubbard model and discuss the effect of uniform non-Abelian gauge-fields on the emergence of exotic magnetism.