<div dir="ltr"><font face="arial, sans-serif"><font color="#000000">Drage kolegice i kolege,<br>Drago mi je da mogu najaviti sljedeći <span class="gmail-il">Seminar</span> Fizičkog odsjeka:<br><br>Dear colleagues,<br>I would like to invite you to the following <span class="gmail-il">Seminar</span> of the Department of<br>Physics:<br><br>ponedjeljak/Monday 04.07.2022. u 14:15 u F201</font></font><div><font color="#000000" face="arial, sans-serif"><br></font><div><font face="arial, sans-serif" color="#000000">poveznica: <a href="https://zoom.us/j/8205066086" target="_blank">https://zoom.us/j/8205066086</a></font></div><div><font face="arial, sans-serif" color="#000000">id: 820 506 6086<br></font><div><font color="#000000" face="arial, sans-serif"><br></font><div><pre style="white-space:pre-wrap;margin-top:0px;margin-bottom:0px"><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">Further development of the precision many-body methods for the studies of</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><font face="arial, sans-serif"><span style="color:rgb(0,0,0)">the physics of high </span><font color="#008000">T_c</font><span style="color:rgb(0,0,0)"> superconductors, chiral magnets, anomalous Hall effect, </span><span style="text-decoration-line:underline;color:rgb(0,0,0)">etc</span><span style="color:rgb(0,0,0)">.</span></font></pre></pre><pre style="white-space:pre-wrap;margin-top:0px;margin-bottom:0px"><font face="arial, sans-serif">
</font><pre style="margin-top:0px;margin-bottom:0px"><font face="arial, sans-serif"><span style="text-decoration-line:underline;color:rgb(0,0,0)">Andrey</span><span style="color:rgb(0,0,0)"> S. </span><span style="text-decoration-line:underline;color:rgb(0,0,0)">Mishchenko</span></font></pre></pre><pre style="white-space:pre-wrap;margin-top:0px;margin-bottom:0px"><pre style="white-space:pre-wrap;margin-top:0px;margin-bottom:0px"><font face="arial, sans-serif">
</font><pre style="margin-top:0px;margin-bottom:0px"><font face="arial, sans-serif"><span style="text-decoration-line:underline;color:rgb(0,0,0)">RIKEN</span><span style="color:rgb(0,0,0)"> Center for Emergent Matter Science (</span><span style="text-decoration-line:underline;color:rgb(0,0,0)">CEMS</span><span style="color:rgb(0,0,0)">), 2-1 </span><span style="text-decoration-line:underline;color:rgb(0,0,0)">Hirosawa</span><span style="color:rgb(0,0,0)">, </span><span style="text-decoration-line:underline;color:rgb(0,0,0)">Wako</span><span style="color:rgb(0,0,0)">, </span><span style="text-decoration-line:underline;color:rgb(0,0,0)">Saitama</span><span style="color:rgb(0,0,0)">, Japan</span></font></pre></pre></pre></div><div><pre style="white-space:pre-wrap;margin-top:0px;margin-bottom:0px"><pre style="white-space:pre-wrap;margin-top:0px;margin-bottom:0px"><pre style="white-space:pre-wrap;margin-top:0px;margin-bottom:0px"><font face="arial, sans-serif">
</font><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">Development of Diagrammatic Monte Carlo and Stochastic Optimization Analytic Continuation</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">methods led to substantial progress in study of many-body effects in high temperature </font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><font face="arial, sans-serif"><span style="color:rgb(0,0,0)">superconductors </span>which was achieved on the initial stage of the methods development.</font></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">However, our studies of variety of novel compounds and phenomena led us to conclusion</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">that our methods require substantial further development to include novel physical properties and</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">phenomena (e.g. optical conductivity, mobility, superconducting properties, magnetic phenomena,</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><font face="arial, sans-serif"><span style="color:rgb(0,0,0)">movement of resonance fermions in cold gases, topological properties, </span><span style="text-decoration-line:underline;color:rgb(0,0,0)">etc</span><span style="color:rgb(0,0,0)">.). Moreover, a serious</span></font></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">emphasis on the word ``precision" in the implementations of many-body methods must be made.</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">To achieve the above goal, we developed Stochastic Optimization Consistent Constrains Analytic</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">Continuation method. This method can be considered as the first method of analytic continuation</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">which can estimate of the error-bars of the analytic continuation result and, thus, can guarantee the</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><font face="arial, sans-serif"><span style="color:rgb(0,0,0)">maximal </span><span style="text-decoration-line:underline;color:rgb(0,0,0)">“precision”</span><span style="color:rgb(0,0,0)"> of the answer. Another substantial progress is the further development of the</span></font></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">Diagrammatic Monte Carlo which can give precise answers for many-fermion problems</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">(thus, circumventing famous fermion sign-problem in quantum Monte Carlo, including frustrated</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">magnetic systems). This method is reinforced recently by capability of calculating optical conductivity</font></span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">and mobility, and can be applied to frustrated magnets and topological insulators.</font></span></pre></pre></pre><font face="arial, sans-serif" color="#000000">
</font></pre><font face="arial, sans-serif" color="#000000">Cjeloviti oglas je u prilogu./Formatted announcement is attached.<br><br>Lijep pozdrav / Best regards<br>Sanjin Benic i Damjan Pelc</font></div></div></div></div></div>