In our lattice model, we theoretically observe that homogeneous non-Abelian lattice gauge potentials induce Dirac cones at time-reversal-invariant momenta in the Brillouin zone. This establishes a foundational understanding of the behavior of photons under structured gauge fields.
We further demonstrate a non-Abelian scalar lattice gauge potential that lifts the degeneracies of the Dirac cones, thereby providing insights into the unique properties of photonic systems influenced by these gauge fields.
#non-abelian-gauge-fields #photonic-systems #lattice-models #topological-physics #experimental-physics
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