<div dir="ltr"><div><div><div><div><br>Dear Dr. Xiaochuan Ge<br><br>Thank you for intimating particularly about time step in the Langevin dynamics. I tried with 2.D0 (0.1 fs), however, system is exploding. I tried according to your suggestion 0.2D0 (0.01 fs), it is working. I am asking you is there any possibility to do Langevin dynamics at higher timestep e.g. 0.1 fs or 0.2 fs. If there such type of possibility, please inform me as soon as possible and what parameters i have to alter in the input file for doing Langevin dynamics at higher time step.<br><br>Once again thanks for remembering me about Langevin dynamics is successful at small time step.<br><br></div>Best<br></div>Venkataramana Imandi<br></div>PhD student<br></div>IIT Bombay<br><div><div><div><div><br><br>Dear Venkataramana,<br>
<br>
I have some experience using the Langevin code. ?Before we go further to<br>
understand your problem, I would suggest you to significantly lower the dt<br>
and try again. Please try dt=0.2 instead of 20. If it still does not work,<br>
please let me know.<br>
<br>
Best, <br>
<br>
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Dr. Xiaochuan Ge (Giovanni)<br>
Center for Functional Nanomaterials<br>
Brookhaven national laboratory<br>
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