From the 1 of 3 linked papers with an AI index.
3 papers
Variants of thick-restart Lanczos for the Bethe-Salpeter eigenvalue problem
Fernando Alvarruiz, Blanca Mellado-Pinto, Jose E. Roman
The paper proposes three structure‑preserving Lanczos eigensolver variants with a thick‑restart scheme for the definite non‑Hermitian Bethe‑Salpeter eigenvalue problem, enabling ef…
A structure-preserving Chebyshev-filtered subspace iteration for the Bethe-Salpeter eigenvalue problem
Blanca Mellado-Pinto, Fernando Alvarruiz, Jose E. Roman
The Bethe-Salpeter equation, which has many applications in both theoretical and applied physics, is generally solved via a matrix eigenvalue problem with a rich algebraic structur…
Solvers for the Hermitian and the pseudo-Hermitian Bethe-Salpeter equation in the Yambo code: Implementation and Performance
Petru Milev, Blanca Mellado-Pinto, Muralidhar Nalabothula +8
We analyze the performance of two strategies in solving the structured eigenvalue problem deriving from the Bethe-Salpeter equation (BSE) in condensed matter physics. The BSE matri…