(treatment of the dipole in the real space).
This is explained in Ge et al., CPC 185, 2080 (2014).
Upgrading the examples and putting a warning in the code.
2) In my last commit (r12487) I wrote a misleading comment:
instead of igk(1:3) and igk_k(1:3,ik) there is of course
igk(ig) and igk_k(ig,ik), where ig runs over G vectors.
In the code everything is fine (only the comment was wrong).
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@12489 c92efa57-630b-4861-b058-cf58834340f0