Multiple options - most directly:<div>https://manual.cp2k.org/cp2k-9_1-branch/CP2K_INPUT/FORCE_EVAL/SUBSYS/KIND.html#list_CORE_CORRECTION</div><div>lets you change the core charge on a pseudopotential. If you make a fake hydrogen and adjust charge appropriately you'd get close to what you were after (won't be a point charge but gaussian smeared charge).<br><br></div><div>There are other routines that could load an external potential on a grid or make use of the QM/MM code in some form.</div><div>Matt</div><div><br></div><div><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Monday, 21 February 2022 at 15:24:34 UTC dr.bra...@gmail.com wrote:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Dear cp2k users,<div><br></div><div>Is it possible to introduce ghost atoms with no basis set and with finite non-integer point charge in AIMD calculations? Something like MM point charges.</div><div><br></div><div>I want to try to simulate behaviour of some small molecules in the electric field which originates from a particular sequence of the point charges.</div><div><br></div><div>Thanks</div><div>Branislav</div></blockquote></div>
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