Extended Data Fig. 9: Dipole–dipole interaction strength as a function of twist angle θ.
From: Van der Waals heterostructure polaritons with moiré-induced nonlinearity
\({U}_{{\rm{dd}}}^{(0)}\) and \({U}_{{\rm{dd}}}^{(1)}\) are the onsite and nearest-neighbour interaction strength, respectively.
