Dear Alh.<div><br></div><div>If not specified, the temperature is set to the system's temperature</div><div>The tolerance for the temperature can but must not be specified. </div><div>The units of the force constant are atomic units.</div><div>The choice of all these parameters is system dependent. </div><div>Preparatory runs to explore the system's behaviour are strongly recommended to help in choosing the proper settings.</div><div><br></div><div>Regards</div><div>Marcella<br><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Tuesday, November 1, 2022 at 1:27:25 PM UTC+1 alh...@gmail.com wrote:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Dear all, <div><br></div><div>I want to use Lagrangian MTD to study a reaction (since the barrier appears to be high), I checked the CP2K manuals and the example at <a href="https://www.cp2k.org/exercises:2015_cecam_tutorial:mtd1" target="_blank" rel="nofollow" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://www.cp2k.org/exercises:2015_cecam_tutorial:mtd1&source=gmail&ust=1667396125660000&usg=AOvVaw1UPIliUF-EKi0-VaUSyRdU">exercises:2015_cecam_tutorial:mtd1 [CP2K Open Source Molecular Dynamics ]</a></div><div>I found that I need to specify 4 parameters for Lagrangian MTD, </div><div>(1)TEMPERATURE</div><div>(2)TEMP_TOL </div><div>and for each CV, </div><div>(3) LAMBDA</div><div>(4) MASS</div><div><br></div><div>my questions are </div><div>(1) I understand why TEMPERATURE need to be specified, but why TEMP_TOL (temperature tolerance) has to be specified?</div><div>(2) is LAMBDA the force constant for the fictitious particle? what's the unit?</div><div>(3) what would be good values for TEMP_TOL and (most importantly) LAMBDA, and, how to tune LAMBDA? </div><div><br></div><div>Thanks,</div><div><br></div><div>Alh.</div><div><br></div><div><br></div><div><br></div></blockquote></div>
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