<div dir="ltr"><span style="font-size:12.8px">Thank you </span><span style="font-size:12.8px">Prof Nicola Marzari </span><br clear="all"><div><br></div><div><span style="font-size:12.8px">So t</span><span style="font-size:12.8px">he system is stable if it </span><span style="font-size:12.8px">doesn't move even if we change the parameter ( temperature - pressure).</span></div><div><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px"> Best,</span><span style="font-size:12.8px"><br></span></div><div><br></div><div class="gmail_signature"><div dir="ltr"><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px"></blockquote><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px"><span style="line-height:18.2px;color:rgb(0,0,255);font-family:'comic sans ms',sans-serif;font-size:small"> FADOUA EL YAHYAOUI<br></span><span style="color:rgb(0,0,255);font-family:'comic sans ms',sans-serif;font-size:small;line-height:18.2px">PhD-</span><span style="color:rgb(0,0,255);font-family:'comic sans ms',sans-serif;font-size:small;line-height:18.2px">student</span><span style="color:rgb(0,0,255);font-family:'comic sans ms',sans-serif;font-size:small;line-height:18.2px"> in Physics of<br></span><span style="line-height:18.2px;color:rgb(0,0,255);font-family:'comic sans ms',sans-serif;font-size:small">High energy-simulation& modeling<br></span><span style="color:rgb(0,0,255);font-family:'comic sans ms',sans-serif;font-size:small;line-height:18.2px">University Mohammed V-Rabat</span><div style="font-size:12.8px"><font size="2" face="comic sans ms, sans-serif" color="#0000ff"><span style="line-height:18.2px">Morocco</span></font></div></blockquote><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px"></blockquote></div></div>
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