Fig. 3 | npj Quantum Materials

Fig. 3

From: Superconductivity from valley fluctuations and approximate SO(4) symmetry in a weak coupling theory of twisted bilayer graphene

Fig. 3

Reducing the band structure from (a) the continuum model to (b) the six-orbital model and finally to (c) the single-orbital model. The energy unit is chosen such that vF|qa| = 1. The continuum model parameters are taken to be w0 = 0.275 and w1|qa| = −0.3 for illustration. Each latter model targets the band(s) high-lighted (in red) in the previous model. The reduced models (b, c) are only valid around the Moiré ΓM point

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