<div dir="ltr"><div>Dear QE community,</div><div><br></div><div>Please suggest what is the "sensitivity" of PW DFT: What is the maximum real distance where wavefunctions of the subsystems mix in a way seen by PW DFT? What is the best way to verify it?<br></div><div><br></div><div>My experience, if objects are separated by > 7 Angstrom, their wavefunctions do not mix. E.g. if dos1 of system1 and dos2 of system2 (calculated separately for isolated system1 and isolated system2) ideally overlap with the dos of system1+system2 (calculated as a whole), can I conclude that systems are electronically decoupled?<br></div><div><br></div><div>Thank you a lot in advance.<br>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Best wishes,</div><div>Al.<span style="border-collapse:separate;line-height:normal;text-align:-webkit-auto;text-indent:0px;border-spacing:0px"><span style="text-align:-webkit-auto">,</span></span> phd candidate in chemical sciences<br>'I.. a universe of atoms, an atom in the universe' (Richard P. Feynman)<br><a href="https://cpms.kaust.edu.sa/" target="_blank">https://cpms.kaust.edu.sa/</a></div></div></div></div></div>
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