Dear all, I am new user to alps. I want to calculate magnetic susceptibility for the square model(4 * 4) using Hamiltonian fermion Hubbard. For this I am using looper and dirloop_sse algorithm. But it is not running at all. It is showing following error Cannot convert fermionic operator to a bosonic matrix
So please tell me how to calculate?
Thanks in advance
with regards, Aniket