BSE solvers overview

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Work in progress

Three main solvers are available in yambo

(1) diagonalization of the full Hamiltonian (diagonalization solver)

(2) subspace iterative | Lanczos algorithm which by-pass diagonalization with the Haydock approach[1] (Lanczos-Haydock solver)

(3) SLEPC (to be completed)

For (1) follow the module on Bethe-Salpeter solver: diagonalization then either return to this tutorial or follow the link to Bethe-Salpeter solver: Lanczos-Haydock for (2).

  1. ↑ R. Haydock, in Solid State Phys., 35 215 (1980) edited by H. Ehrenfest, F. Seitz, and D. Turnbull, Academic Press
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