Spectral functions, essential for understanding how electrons behave within materials, are now accurately calculated across metallic and insulating states without requiring complex analytical continuation techniques. This advance extends an established quantum diagonalization technique to calculate single-particle Green’s functions, previously limited to ground state estimations. The method achieves this using fewer computational resources than existing approaches, potentially enabling more detailed simulations on current quantum computers.
Researchers Map Electronic Structure with Krylov Diagonalization
Spectral functions, essential for understanding how electrons behave within materials, are now accurately calculated across metallic and insulating states without requiring complex analytical continuation techniques. This advance extends an established quantum diagonalization technique to calculate single-particle Green’s functions, previously limited to ground state estimations. The method achieves this using fewer computational resources than existing approaches, potentially enabling more d...