During his PhD studies, Jens Havgaard Nyhegn investigated how quantum simulators can be used to understand the nature of impurities in materials. Doping quantum mechanical systems with impurities can drastically change their characteristics. A better understanding of these and how they interact with the surrounding environment can pave the way for creating new desirable quantum materials. With an emphasis on observable in optical lattice experiments, Jens Havgaard Nyhegn studied the behavior of charge impurities submerged in an antiferromagnetically ordered background and a spin liquid background.

The findings contribute to the understanding of quantum mechanical impurities and their interplay with the surrounding environment.

The PhD study was completed at the Department of Physics and Astronomy, Faculty of Natural Sciences, Aarhus University.

This summary was prepared by the PhD student.

Time: Tuesday, 22 October at 12:00
Place: Building 1525, room 626, Lecture Theatre Det Skæve rum, Department of Physics and Astronomy, Aarhus University, 120 Ny Munkegade, 8000 Aarhus
Title of PhD thesis: Equilibrium and non-equlibrium dynamics of dopants in a spin system
Contact information: Jens Havgaard Nyhegn e-mail: jensnyhegn@phys.au.dk tel.: +45 26746405

Members of the assessment committee:
Professor Karsten Flensberg, The Niels Bohr Institute, University of Copenhagen, Denmark

Professor Michael Knap, School of Natural Sciences and Institute for Advanced Study, Technical University of Munich, Germany

Lecturer Brian Julsgaard (chair), Department of Physics and Astronomy, Aarhus University, Denmark

Main supervisor:
Professor Georg Bruun, Department of Physics and Astronomy, Aarhus University, Denmark

Language: The PhD dissertation will be defended in English

The defence is public.
The PhD thesis is available for reading at the Graduate School of Natural Sciences/GSNS, Ny Munkegade 120, building 1521, 8000 Aarhus C