File Name : sup_figure1.png Caption : caption : (a)-(b) moiré subbands for interlayer excitons in the twisted $ ext{mose}_2/ ext{wse}_2$ heterostructure at $\vartheta=1^{\circ}$ and $\vartheta=3^{\circ}$. (c)-(d) interlayer excitonic wavefunction in real space representation for $\vartheta=1^{\circ}$ and $\vartheta=3^{\circ}$ in a moiré potential.