IBSE

IBSE = [integer] 

Default: IBSE

= 0

Description: IBSE can be used to select the algorithm for solving the Bethe-Salpeter or Casida equation.

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The following options are available to solve the Bethe-Salpeter or Casida equation:

• IBSE = 0: Exact diagonalization
• IBSE = 1: Time evolution

Related tag and articles

IBSE, BSEPREC, NBANDSV, NBANDSO, CSHIFT, OMEGAMAX, BSE calculations, Time-dependent density-functional theory calculations, Bethe-Salpeter equations