The single-mode approximation for fractional Chern insulators and the fractional quantum Hall effect on the torus

C. Repellin, T. Neupert, Z. Papic +1

We analyze the collective magneto-roton excitations of bosonic Laughlin $\nu =1/2$ fractional quantum Hall (FQH) states on the torus and of their analog on the lattice, the fractional…