Abstract: Weyl points trapped within a C_2T-symmetric plane (C2 = 180 degrees rotation, and T = time reversal) possess non-Abelian topological charges on top of their chirality. E.g. three-level systems realize the quaternion group. This picture requires to go beyond the modeling of a band structure as a Grassmannian (where a single spectral gap is […]
Webpage of event can be found here This meeting is intended as a platform of discussion to set up collaborations on KAW (The Knut and Alice Wallenberg Foundation) and future projects. Schedule The event will comprise of introductory talks on the theory and experimental side, intended to last fifteen minutes and open to the floor […]
Speaker: Ilaria Maccari (KTH) Title: Vortex physics in 2D disordered superconductors Time: Tuesday 29th of October, Fika 10:30-11:00 , Seminar 11:00-12:00, Place: Nordita South, room 112:028 . Abstract: The study of quasi-two-dimensional (2D) superconductors can hardly avoid to take into account the presence of vortices. Many real systems, of both conventional and […]
Speaker: Sumanta Bandyopadhyay (NORDITA) Title: Entangled Pauli Principles: the DNA of Quantum Hall Fluids Time: Tuesday 5th of November, Fika 10:30-11:00 , Seminar 11:00-12:00, Place: Nordita South, room 112:028 . Abstract: A formalism is developed for the rigorous study of solvable fractional quantum Hall parent Hamiltonians with Landau level mixing. The idea […]
Speaker: Xiao-Jia Chen (Center for High-Pressure Science & Technology Advanced Research) Title: Discovery of superconductivity in phenyl molecules Time: Wednesday 6th of November, Fika 10:30-11:00 , Seminar 11:00-12:00, Place: Nordita South, room 112:028 . Abstract: Organic compounds are always promising candidates of superconductors with high transition temperatures Tc’s. In this talk, we […]
Speaker: David Cassidy from the University College London. Title: Recent experimental progress in positronium-laser physics Time and place: Thursday November 7 at 15.15 (coffee and tea from 15.00) in the Oskar Klein auditorium FR4. Abstract: The field of experimental positronium physics has advanced significantly in recent years, in many cases by employing new techniques for trapping […]
Exploring superconductivity in organobismuth molecules Ren-Shu Wang Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China Recently, novel quantum phenomena such as topological insulators and superconductors were suggested in organometallic materials. Three different types of organobismuth molecules, including triphenylbismuth (TPB), tri-p-tolylbismthine (p-TTB), and tri-o-tolylbismthine (o-TTB), were investigated to explore organic […]
Antiferromagnetic order and possible quantum spin liquid in sodium doped 2,2′-bipyridine Di Peng Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China Organic molecular solids with correlated electronics based on π-electron networks provide fertile ground for the search for peculiar materials, including antiferromagnetic and quantum magnetism. We report a development […]
Theoretical Quantum Matter