If Laughlin's argument for IQHE is a non-interacting picture, then why it still works?
Besides, what is the relation between Laughlin and Halperin's approach and TKNN (also the later work by Niu and Thouless)?
If Laughlin's argument for IQHE is a non-interacting picture, then why it still works?
Besides, what is the relation between Laughlin and Halperin's approach and TKNN (also the later work by Niu and Thouless)?