Hi, I am looking forwards to cide this Hamiltonian which involves density induced or correlated hopping. Basically it contains of two components and the hopping of one component depends on the number density of earlier compoenet, I am unable to write the correct code to construct this Hamiltonian, kindly guide me.
Also see: Phys. Rev. B 106, L241115 (2022) - Interacting second-order topological insulators in one-dimensional fermions with correlated hopping
Explanation: Here two chains are taken and the hopping of second chain depends on the density of first chain. I have tried a lot however could not code the hamiltonian. It would be great if you could provide its Julia code.