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<span style="font-family:arial,sans-serif;font-size:13px"> </span> En el Aula Seminario, 2do piso, Pab. I,<br><br> Jueves 26/11, 14hs: <br> <br> FELIX VON OPPEN<br> <br> FU-Berlin<br><br> <br> <span style="font-size:13px"><b>Magnetic adatoms on superconductors - a new venue for Majorana bound states?</b></span></div><div><br></div><span style="font-size:13px">Motivated in part by the quest for topological quantum computation, there </span><span style="font-size:13px">is a substantial ongoing research effort to realize Majorana bound states and topological superconductivity in condensed matter systems. Majorana bound states are related to Majorana fermions in high-energy physics, but obey an exotic - and yet unobserved - form of quantum statistics called non-abelian statistics.</span><br style="font-size:13px"><br style="font-size:13px"><span style="font-size:13px">Following prominent experiments on semiconductor quantum wires, Nadj-Perge et al. [Science 346, 602 (2014)] recently provided possible evidence for Majorana bound states in chains of magnetic adatoms on a conventional superconductors. In this talk, I will begin with a general introduction to the physics of Majorana bound states. The second part will then discuss the physical picture underlying this experiment, including an explanation of the unexpectedly strong localization of the observed end states.</span><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><div><br></div></div>
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