Mötesplats Rydberg: Alan Tennant "Measuring highly quantum-entangled states in magnets with neutrons"

Tuesday 20 Oct 2020, 15:15 → 16:15 Europe/Stockholm

Fysiska institutionen-Physics Department

Quantum magnets provide a playground for exploring quantum phenomena in condensed matter. Many model systems are available for study and neutron scattering provides a powerful experimental probe for understanding their exotic states and quasiparticles. New developments in quantum information science and the simulation of quantum systems is leading to new insights which are galvanising studies of these materials and their potential for future application. Highly entangled quantum states such as spin liquids are being sought as platforms for topological quantum information processing. Identifying and understanding these materials involves new challenges for quantifying their entanglement, transport properties, and quasiparticle statistics. To address these challenges, we have carried out experiments on model magnetic systems as well as quantum spin liquid candidates. In this talk I will show the results of recent experiments and new analysis approaches to determine the phases of such complex quantum matter. I joined Oak Ridge National Laboratory in 2013 as Chief Scientist for neutrons. In 2017 I became laboratory wide Initiative Lead for Quantum Materials. In 2020 I was part of the team that successfully proposed a new $115M national center for topological quantum computing, the Quantum Science Center. My research focuses principally on neutron scattering from quantum materials and I am heading the project on quantum spin liquid discovery and synthesis in the Quantum Science Center. Since 2015 I have been the director of the Shull Wollan Center, a Joint Institute for Neutron Science between University of Tennessee and Oak Ridge National Laboratory. Please join the digital Mötesplats Rydberg: https://lu-se.zoom.us/j/910953381