- #1
Yiheng Xu
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Hi,
Is the Dyson's equation basis independent (for instance, I construct the basis set where the elements are atomic orbitals and those orbitals are non-orthogonal) ?
What is the unperturbed retarded Green's function for one-particle case in matrix notation if the basis functions are not orthogonal?
Thank you!
Is the Dyson's equation basis independent (for instance, I construct the basis set where the elements are atomic orbitals and those orbitals are non-orthogonal) ?
What is the unperturbed retarded Green's function for one-particle case in matrix notation if the basis functions are not orthogonal?
Thank you!