<div dir="ltr">Dear Juerg,<div> Thank you for your response.</div><div><br></div><div>regards,</div><div>Golokesh</div></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Nov 1, 2018 at 12:15 PM <<a href="mailto:hut...@chem.uzh.ch">hut...@chem.uzh.ch</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi<br>
<br>
you added kinetic energy (Temperature) to your system. This energy<br>
is distributed to the different degrees of freedom and also<br>
to the potential energy. <br>
If the total energy didn't drift (increase steadily) all is ok.<br>
<br>
regards<br>
<br>
Juerg Hutter<br>
--------------------------------------------------------------<br>
Juerg Hutter Phone : ++41 44 635 4491<br>
Institut für Chemie C FAX : ++41 44 635 6838<br>
Universität Zürich E-mail: <a href="mailto:hut...@chem.uzh.ch" target="_blank">hut...@chem.uzh.ch</a><br>
Winterthurerstrasse 190<br>
CH-8057 Zürich, Switzerland<br>
---------------------------------------------------------------<br>
<br>
-----<a href="mailto:cp...@googlegroups.com" target="_blank">cp...@googlegroups.com</a> wrote: -----<br>
To: "cp2k" <<a href="mailto:cp...@googlegroups.com" target="_blank">cp...@googlegroups.com</a>><br>
From: "Golokesh Santra" <br>
Sent by: <a href="mailto:cp...@googlegroups.com" target="_blank">cp...@googlegroups.com</a><br>
Date: 11/01/2018 10:08AM<br>
Subject: [CP2K:10887] Water cluster potential energy converges at the higher value than the starting structure(BOMD simulation, NVT )<br>
<br>
Hello,<br>
I was trying water cluster BOMD simulation taking NVT ensemble into consideration. I have used MT Poisson Solver and 'Periodic None' in both POISSON and CELL section. In the period of simulation(10ps with 0.5fs time step), I can see both the potential energy and total energy has increased from the starting structure and converge at the higher value very rapidly. The difference of the starting and converged(higher) energy is ~0.04 Hartree. I can not understand the phenomenon. Can you please explain why this is happening? <br>
<br>
Thanks in advance.<br>
<br>
<br>
-Golokesh Santra<br>
Ph.D. Student<br>
Weizmann Institute of Science<br>
Israel<br>
<br>
<br>
<br>
<br>
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