<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div dir="ltr" data-setdir="false">Hello quantum espresso users.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I need to calculate the temperature dependent electronic Helmholtz free energy using quantum espresso (i.e. E_el - TS). I found several old posts in QE_forum and several papers claims that it is possible with QE. But I could not find any clear approach which gives the correct procedure for this.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><a href="https://lists.quantum-espresso.org/pipermail/users/2017-November/039809.html" rel="nofollow" target="_blank">https://lists.quantum-espresso.org/pipermail/users/2017-November/039809.html</a></div><div dir="ltr" data-setdir="false"><a href="https://lists.quantum-espresso.org/pipermail/users/2017-September/039313.html" rel="nofollow" target="_blank">https://lists.quantum-espresso.org/pipermail/users/2017-September/039313.html</a></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><a href="https://arxiv.org/pdf/1412.7021.pdf" rel="nofollow" target="_blank">https://arxiv.org/pdf/1412.7021.pdf</a></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I appreciate very much if someone can give any positive comment on this.</div><div>Thank you</div><div dir="ltr" data-setdir="false">N.Singh</div><div dir="ltr" data-setdir="false">UOC<br></div></div></body></html>