# Chern-number spectrum of ultracold fermions in optical lattices tuned independently via artificial magnetic, Zeeman, and spin-orbit fields

@article{Yau2019ChernnumberSO, title={Chern-number spectrum of ultracold fermions in optical lattices tuned independently via artificial magnetic, Zeeman, and spin-orbit fields}, author={Man Hon Yau and Carlos Sa de Melo}, journal={Physical Review A}, year={2019} }

We discuss the Chern number spectrum of ultra-cold fermions in square optical lattices as a function of artificial magnetic, Zeeman and spin-orbit fields that can be tuned independently. We show the existence of topological quantum phase transitions induced by Zeeman and spin-orbit fields, where the total number and chirality of edge states change for fixed magnetic flux ratio, thus leading to topological-insulator phases which are different from those found at zero Zeeman and spin-orbit fields…

## One Citation

Eigenspectrum, Chern numbers and phase diagrams of ultracold color-orbit-coupled SU(3) fermions in optical lattices

- Physics
- 2021

We study ultracold color fermions with three internal states, red, green, and blue, with $\mathrm{SU}(3)$ symmetry in optical lattices, when color-orbit coupling and color-flip fields are present.…

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