Finding the effective Hamiltonian in a certain subspace
Posted by Hosein, at physics.stackexchange.com,
In order to find the effective Hamiltonian in a subspace which is energetically well separated from the rest of the Hilbert…
In order to find the effective Hamiltonian in a subspace which is energetically well separated from the rest of the Hilbert…
I am confused as to why it is said that the Heisenberg model is a hard-core boson model.