<div dir="ltr"><div><div><div><div><div><div><div>Dear Huy Pham,<br></div>I don't know if this is the easiest way but you could use the turboTDDFT code<br><a href="https://arxiv.org/pdf/1402.0486.pdf">https://arxiv.org/pdf/1402.0486.pdf</a><br></div>If you use the davidson diagonalization and the option no_hxc=.true. you will obtain as output some oscillator strengths which are<br></div>proportional to the transition dipole moments between Kohn-Sham valence and conduction states. You will need to verify the units.<br></div>If no_hxc=.false. you obtain a similar quantity at the TDDFT level. In this case conduction (and valence) bands are mixed together by Hartree-xc effects in<br></div>the TDDFT kernel.<br></div>Best,<br></div>Dario<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Feb 15, 2017 at 1:19 AM, Huy Pham <span dir="ltr"><<a href="mailto:pchuy1906@gmail.com" target="_blank">pchuy1906@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>Dear QE users,<br><br>I want to calculate the transition dipole moment between conduction and valence bands for an isolated molecule using QE. I searched the forum but didn't find much information.<br>Can anyone give me some suggestions?<br clear="all"><br></div>Thanks,<br></div>Huy<span class="HOEnZb"><font color="#888888"><br><div><div><br>-- <br><div class="m_-8139492994429366247gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><font size="2"><span style="font-family:arial,helvetica,sans-serif">Huy Pham, <span>PhD<br></span></span></font></div><div><font size="2"><span style="font-family:arial,helvetica,sans-serif"><span>Postdoctoral Researcher<br></span></span></font></div><div dir="ltr"><div style="color:rgb(0,0,0);font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><font size="2"><span style="font-family:arial,helvetica,sans-serif">Department of Chemistry and Biochemistry<br>University of California, San Diego</span></font></div><div style="color:rgb(0,0,0);font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><font size="2"><span style="font-family:arial,helvetica,sans-serif">9500 Gilman Drive</span></font></div><div style="color:rgb(0,0,0);font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><font size="2"><span style="font-family:arial,helvetica,sans-serif">Urey Hall 4205</span></font></div><div style="color:rgb(0,0,0);font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><font size="2"><span style="font-family:arial,helvetica,sans-serif">La Jolla, CA 92093</span></font></div><font size="2"><span style="font-family:arial,helvetica,sans-serif">E-mail: <br><a href="mailto:pchuy1906@gmail.com" target="_blank">pchuy1906@gmail.com</a> <br></span></font><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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