<div dir="ltr"><div><br></div>Hi<div><br></div><div>or you could use linear response:</div><div><br></div><div><a href="http://manual.cp2k.org/trunk/CP2K_INPUT.html" style="font-family: monospace; text-transform: uppercase;">CP2K_INPUT</a><span style="color: rgb(0, 0, 0); font-family: monospace; text-transform: uppercase;"> / </span><a href="http://manual.cp2k.org/trunk/CP2K_INPUT/FORCE_EVAL.html" style="font-family: monospace; text-transform: uppercase;">FORCE_EVAL</a><span style="color: rgb(0, 0, 0); font-family: monospace; text-transform: uppercase;"> / </span><a href="http://manual.cp2k.org/trunk/CP2K_INPUT/FORCE_EVAL/PROPERTIES.html" style="font-family: monospace; text-transform: uppercase;">PROPERTIES</a><span style="color: rgb(0, 0, 0); font-family: monospace; text-transform: uppercase;"> / </span><a href="http://manual.cp2k.org/trunk/CP2K_INPUT/FORCE_EVAL/PROPERTIES/LINRES.html" style="font-family: monospace; text-transform: uppercase;">LINRES</a><span style="color: rgb(0, 0, 0); font-family: monospace; text-transform: uppercase;"> / </span><a href="http://manual.cp2k.org/trunk/CP2K_INPUT/FORCE_EVAL/PROPERTIES/LINRES/POLAR.html" style="font-family: monospace; text-transform: uppercase;">POLAR</a></div><div><br></div><div>regards</div><div>Marcella<br><br>On Thursday, November 13, 2014 12:21:05 PM UTC+1, mohamed khuili wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;"><div dir="ltr"><span lang="en"><span>Hello,</span><br> <span>help me</span> <span>to calculate the</span> <span>Raman</span> <span>spectrum using</span> <span>real time</span> <span>propagation</span><span>, knowing that</span> <span>I got the</span> <span>dipole moment</span> <span>varies</span> <span>in time with</span> <span>the</span> <span>real time</span> <span>propagation</span> <span>for the</span> <span>electron</span> <span>dynamics</span><br> <span>Thank you very much</span></span></div></blockquote></div></div>