Am Montag (14.11.22) um 12.00 Uhr c.t. findet der nächste Termin unseres Physikalischen Kolloquiums statt.
Referentin ist Prof. Dr. Catherine Pépin ( Institut de Physique Théorique, Université Paris–Saclay, Gif–sur–Yvette, France) zum Thema: „Charge Order and Strange Metals in Cuprate Superconductors“ (in memory of Prof. Konstantin B. Efetov).
Charge orders and charge fluctuations have been ubiquitously observed in the phase diagram of Cuprate superconductors. We will review the experimental status of these various observations,
differentiating the under-doped region and the optimally-doped and over-doped ones. Various theories have been advanced to explain the presence of these orders and their implication for our
understanding of the pseudo-gap, from the idea of “vestigial order” to the one of “fluctuating Pair Density Wave (PDW)”. We will discuss these theoretical approaches in direct comparison
with experiments. We will then introduce a proposal of “fractionalization of a PDW” in order to explain the pseudo-gap state. We will show that this idea produces a strong phenomenology, especially ARPES experiments, and giving a clue for the puzzling transport properties recently reported in the optimally doped and over-doped regions. We will then focus on the strange metal phase of those compounds and make a proposal for electric transport in this phase.
Abstract Vortrag Prof. Dr. Catherine Pépin
Die Einführung erfolgt durch Prof. Dr. Ilya Eremin.
Die Fakultät lädt alle Interessierten herzlich ein. Die Veranstaltung findet im Hörsaal HNC 10 und hybrid via Zoom statt. Vor dem Kolloquium bieten wir Ihnen Kaffee und Kekse an.
Über diesen Link gelangen Sie zur Zoom-Veranstaltung (Meeting–ID: 632 5520 9938, Passwort: 526977). Alle Termine des Physikalischen Kolloquiums finden Sie hier.