# Linear response

Apart from ground-state properties, VASP can compute how a system reacts to external perturbations. If the perturbation is small, the response is in the linear regime and thus linear response theory can be applied.

## Further resources

For lectures, check here:

- Linear response by Henrique Miranda

Also check out the linear response category on the VASP Wiki for a detailed documentation of the type of perturbations implemented in VASP.