On Monday (11/14-22) at 12:00 p.m. c.t., the next meeting of our Physics Colloquium will take place.
The speaker will be Prof. Dr. Catherine Pépin ( Institut de Physique Théorique, Université Paris-Saclay, Gif-sur-Yvette,France) on the topic: "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 lecture Prof. Dr. Catherine Pépin
The introduction will be given by Prof. Dr. Ilya Eremin.
The faculty cordially invites all interested parties. The event will take place in lecture hall HNC 10 and hybrid via Zoom. Before the colloquium we offer coffee and cookies.
This link will take you to the Zoom event (Meeting-ID: 632 5520 9938, password: 526977). All dates of the Physics Colloquium can be found here.