triqs.atom_diag.atom_diag.AtomDiagReal.get_eigenvalue

AtomDiagReal.get_eigenvalue()

Dispatched C++ function(s).

[1] (sp_index: int, i: int)
  -> float

Get the eigenvalue \(E_{B,i}\) of the Hamiltonian.

Parameters:

sp_indexint

Subspace index \(B\).

iint

Eigenstate index inside subspace \(B\), with \(0 \le i < \dim(B)\).

Returns:

float

Eigenvalue \(E_{B,i}\), with the global ground-state energy subtracted.