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4.7 Other tools</A>
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<P>
Code <TT>ppacf.x</TT> computes the coupling constant dependency of the
exchange correlation potential <!-- MATH
$E_{xc,\lambda}, \lambda \in [0:1]$
-->
<I>E</I><SUB>xc, <I>λ</I></SUB>, <I>λ</I>∈[0 : 1]
and the spatial distribution of the exchange-correlation energy density
and kinetic correlation energy density according to:
Y. Jiao, E. Schröder, and P. Hyldgaard, Phys. Rev. B 97, 085115 (2018).
See <TT>PP/Doc/INPUT_PPACF.html</TT>.
<P>
Code <TT>wfck2r.x</TT> converts Kohn-Sham orbitals from reciprocal to real
space. It is a useful starting point if you need to access wavefunctions
and perform postprocessing operations that are not implemented in Q<SMALL>UANTUM </SMALL>ESPRESSO.
<P>
Code <TT>epsilon.x</TT> calculates RPA frequency-dependent complex dielectric
function. Documentation is in file <TT>Doc/eps_man.tex</TT>.
<P>
Code <TT>initial_state.x</TT> calculates the initial state contribution
to the Core-level shift. See <TT>CLS_IS_example/</TT> for
an example, and <TT>CLS_FS_example/</TT> for the corrsponding
final state calculation of Core-level shifts.
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