gem.fragment.Fragment.solve_impurity

Fragment.solve_impurity(mu, T=0.0, num_eig=1, spin_pen=0.0)

Solve embedding problem using the solver from Fragment

Parameters:

• mu – float. Chemical potential.

• T – float. Temperature.

• num_eig – int. Number of eigenvalues to compute.

• spin_pen – float. Penalty for spin singlet symmetry breaking.