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Everything about Local-density approximation

Approximations in density functional theory

Local-density approximations (LDA) are a class of approximations to the exchange–correlation (XC) energy functional in density functional theory (DFT) that depend solely upon the value of the electronic density at each point in space. Many approaches can yield local approximations to the XC energy. However, overwhelmingly successful local approximations are those that have been derived from the homogeneous electron gas (HEG) model. In this regard, LDA is generally synonymous with functionals based on the HEG approximation, which are then applied to realistic systems. Wikipedia →

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  1. Read the overview: Local-density approximationA 5-minute orientation
  2. Skim a recent paper: Local Density Approximation for Excited StatesInfluential work since 2022
  3. Pick up a classic book: Neural Information ProcessingThe most-reprinted book on the subject
  4. Read the landmark paper: Time-dependent local-density approximation in real timeCited 899 times
  5. Go sideways: Onsager reciprocal relationsA closely related topic
  6. Go sideways: Time-dependent density functional theoryA closely related topic

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