<div dir="ltr">Dear Paul,<div><br></div><div>yes, the implementation that allows DFPT calculations from a DFT+U ground state is quite substantial (especially with US PPs). Unfortunately, we could only work on this project intermittently for the past years, and the progress has been slow. We are still working to improve the code and clear some problems; it will be released in some form when we feel it is ready. </div><div><br></div><div>Matteo</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Jan 17, 2016 at 2:10 AM, W2AGZ <span dir="ltr"><<a href="mailto:w2agz@w2agz.com" target="_blank">w2agz@w2agz.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal">I just had a quick look at the source code, phq.readin.f90 in QE release 5.3.0, and see that support of lda_plus_u is still not supported for the calculation of electron-phonon interactions in Hubbard manifolds. It’s been a number of years since this issue was originally posted on pw_forum. Is their a particular problem within the QE formalism, maybe in the basis set resulting from a Hubbard calculation, that would make this extremely difficult…or impossible…to implement? What source code routines would need modification/replacement?<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Thanks, -Paul <u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><b><i><span style="font-size:13.5pt;font-family:"Comic Sans MS";color:#1f497d">Paul Michael Grant, PhD<u></u><u></u></span></i></b></p><p class="MsoNormal"><b><i><span style="font-family:"Comic Sans MS";color:#1f497d">Physicist and Science Writer<u></u><u></u></span></i></b></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">Senior Life Fellow, American Physical Society<u></u><u></u></span></b></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">Fellow, Institute of Physics, United Kingdom<u></u><u></u></span></b></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">APS Distinguished Lecturer on Applications of Physics (2014-15) <u></u><u></u></span></b></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">Staff Associate, Jet Propulsion Laboratory, NASA (2011-15)</span></b><span style="color:#1f497d"><u></u><u></u></span></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">Visiting Scholar, Applied Physics, Stanford (2005-2008)</span></b><span style="color:#1f497d"><u></u><u></u></span></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">EPRI Science Fellow (Retired)</span></b><span style="color:#1f497d"><u></u><u></u></span></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">IBM Research Staff Member/Manager Emeritus</span></b><span style="color:#1f497d"><u></u><u></u></span></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">Principal, W2AGZ Technologies<u></u><u></u></span></b></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d"><a href="mailto:w2agz@w2agz.com" target="_blank"><span style="color:black">w2agz@w2agz.com</span></a></span></b><span style="color:#1f497d"><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d"><a href="http://www.w2agz.com/" target="_blank"><b><span style="color:black">http://www.w2agz.com</span></b></a></span><span style="color:#1f497d"><u></u><u></u></span></p><p class="MsoNormal"><u></u> <u></u></p></div></div><br>_______________________________________________<br>
Pw_forum mailing list<br>
<a href="mailto:Pw_forum@pwscf.org">Pw_forum@pwscf.org</a><br>
<a href="http://pwscf.org/mailman/listinfo/pw_forum" rel="noreferrer" target="_blank">http://pwscf.org/mailman/listinfo/pw_forum</a><br></blockquote></div><br></div>