Hamburg Photon Science Colloquium | Bringing together quantum simulations and machine learning

by Eugene Demler (Harvard University, Cambridge, MA, USA)

Friday 5 Apr 2019, 14:00 → 15:30 Europe/Berlin

CFEL SR I-III (Bldg. 99) (DESY, Hamburg)

What can we learn about a many-body system when we measure every constituent particle? Experiments with ultracold atoms provide snapshots of many-body states with single particle resolution. This calls for new approaches to studying quantum many-body systems with a focus on analyzing patterns and using machine learning techniques. I will present a recent application of this method to study magnetic polarons in antiferromagnetic Mott insulators. Results indicate that magnetic polarons can be described as spinon-chargon pairs bound by geometric strings, in analogy to quark-antiquark bound pairs forming mesons in QCD. I will also discuss application of neural networks to compare different microscopic theories of doped Mott insulators.