<div dir="ltr"><p class="MsoNormal" align="center" style="font-size:12.8px;text-align:center"><b><u><span lang="ES">SEMINARIOS  DEL IFLP y DEL DEPARTAMENTO</span></u></b></p><p class="MsoNormal" align="center" style="font-size:12.8px;text-align:center"><b><u>JUEVES 27 de ABRIL – 10:30 hs</u></b></p><p class="MsoNormal" align="center" style="font-size:12.8px;text-align:center"><b><u><span lang="EN-US">AULA CHICA</span></u></b></p><p class="MsoNormal" style="font-size:12.8px;text-align:justify"><br></p><p class="MsoNormal" style="font-size:12.8px"><b><u><span lang="EN-US">TÍTULO</span></u></b><b><span lang="PT-BR">: </span></b><b><span lang="EN-US">"2D Critical Casimir forces between inhomogeneous boundaries"</span></b><b><span lang="EN-US" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"></span></b></p><p class="MsoNormal" style="font-size:12.8px;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="EN-US" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"> </span><span lang="EN-US" style="color:rgb(69,69,69)"></span></p><p class="MsoNormal" style="font-size:12.8px;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="EN-US" style="color:rgb(69,69,69)"> </span></p><p class="MsoNormal" style="font-size:12.8px;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><b><u>EXPOSITOR:</u></b><b> </b><span class="gmail-m_-3293626198267046662gmail-Ninguno"><b><span lang="PT-BR">Raoul Santachiara</span></b></span></p><p class="MsoNormal" style="font-size:12.8px;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><i><span lang="ES-TRAD"><font size="2">Laboratoire de Physique Theorique et Modeles Statistiques de la Universite de Paris-Sud</font></span></i></p><p class="MsoNormal" style="font-size:12.8px;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><i><span lang="ES-TRAD"><font size="2"><br></font></span></i></p><p class="MsoNormal" style="font-size:12.8px"><b><u><span lang="EN-US">Resumen:</span></u></b><span lang="EN-US"> </span><span lang="PT-BR">Systems as diverse as binary mixtures and inclusions in biological</span> membranes, and many more can be described effectively by interacting spins. When the critical fluctuations in these systems are constrained by boundary conditions, critical Casimir forces (CCF) emerge. Here we analyze CCF between boundaries with alternating boundary conditions in two dimensions, employing conformal field theory (CFT). Interestingly we will discuss about a new form of the Szego-Widow theorem for block Toepliz matrices</p><p class="MsoNormal" align="center" style="font-size:12.8px;text-align:center"></p><p class="MsoNormal" style="font-size:12.8px;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span lang="PT-BR" style="color:black"> </span></p><p class="MsoNormal" align="center" style="font-size:12.8px;text-align:center"><b><u><span lang="ES"><br></span></u></b></p></div>