<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><blockquote type="cite"></blockquote><div>Dear Zimin, </div><div><br></div><div>indeed I try to represent the q-resolved spectral function \alpha^2F(\nu,q) as eq.(3) in your paper, but </div><div>WITHOUT the square of the interaction strength eq.(2). So what remains is the q-resolved nesting-function. </div><div>Nevertheless, I found your paper quite interesting. How do you technically achieved the rigid-band shift? Did you add </div><div>the additional 0.05 electrons by setting tot_charge = 0.0500000? How do you control the convergence of </div><div>the electron-phonon parameter \Lambda or the Eliashberg function with respect to the smearing of the </div><div>double-delta integral if you are so close to the bandedge? I would really appreciate your answers and ideas.</div><div><br></div><div>thanks a lot</div><div>Nicki</div><div><br>-------------------------------------------------------------<br>Nicki Frank Hinsche, Dr. rer. nat.<br>Institute of physics - Theoretical physics, <div>Martin-Luther-University Halle-Wittenberg, </div><div>Von-Seckendorff-Platz 1, Room 1.07 </div><div>D-06120 Halle/Saale, Germany<br>Tel.: ++49 345 5525460<br>-------------------------------------------------------------</div></div><div><br></div><div><br></div><blockquote type="cite"><blockquote type="cite">To: "PWSCF Forum" <<a href="mailto:pw_forum@pwscf.org">pw_forum@pwscf.org</a>><br>Message-ID: <<a href="mailto:FB5F7460B39A4740A5EA3234900DA8E11DA527@WPEXCV106.hydroqc.hydro.qc.ca">FB5F7460B39A4740A5EA3234900DA8E11DA527@WPEXCV106.hydroqc.hydro.qc.ca</a>><br>Content-Type: text/plain;<span class="Apple-tab-span" style="white-space: pre; "> </span>charset="iso-8859-1"<br><br>Hi Nicki,<br>Let me know if this is what you are trying to do:<br><a href="http://prb.aps.org/abstract/PRB/v88/i18/e184302">http://prb.aps.org/abstract/PRB/v88/i18/e184302</a><br>fzm <br></blockquote><br>-----Message d'origine-----<br>De : <a href="mailto:pw_forum-bounces@pwscf.org">pw_forum-bounces@pwscf.org</a> [<a href="mailto:pw_forum-bounces@pwscf.org">mailto:pw_forum-bounces@pwscf.org</a>] De la part de nicvok<br>Envoy? : 27 janvier 2014 13:28<br>? : <a href="mailto:pw_forum@pwscf.org">pw_forum@pwscf.org</a><br>Objet : [Pw_forum] electron-phonon coupling, nesting, double-delta<br><br>Dear all,<br><br>I am trying to extract the nesting function/double delta X(q,\nu) (sim. to eq.(22)/(A1) in Wierzbowska et al. <a href="http://arxiv.org/abs/cond-mat/0504077)">http://arxiv.org/abs/cond-mat/0504077)</a><br>out of QE503. I would like to have it in the same way as the phonon linewidth g(q,\nu) (gamma(i,n) in matdyn.f90).<br>A starting point would be gf(mu,nu,isig) in elphon.f90 and/or phase_space in elphsum_simple in elphon.f90, which should both represent the double delta by using gaussians. However, I am right now puzzled and wondering where I have to search/work for an direct output of the nesting function for arbitrary q?<br><br>I would appreciate any hint.<br>Nicki<br></blockquote><br></body></html>