Talks

Research talks (selection)

• Continuous order-to-order transition from fixed-point annihilation, QMQI Seminar, TU Munich, DE, 2025-12-10, pdf

• Dirac quantum criticality in moiré systems, Korrelationstage 2025, MPI-PKS Dresden, DE, 2025-09-18, pdf

• Ferrimagnetism from triple-q order in Na₂Co₂TeO₆, International Conference on Highly Frustrated Magnetism 2025, Toronto, CA, 2025-05-28, pdf

• Continuous order-to-order transition from fixed-point annihilation, Workshop "Strongly-Interacting Field Theories 2024", Jena, DE, 2024-11-28, pdf

• Interaction effects in Bernal and twisted bilayer graphene, I. Physikalisches Institut, Universität Göttingen, DE, 2024-11-25, pdf

• Twist-tuned quantum criticality in bilayer graphene, International Conference on Complexity and Topology in Quantum Matter, Dresden, 2024-09-26, pdf

• Gross-Neveu criticality in quantum magnets, Graduate Days on "Quantum Field Theory applied to Condensed Matter Systems", Graz, AT, 2024-05-28, pdf

• Magnetic ground state of the Kitaev material Na₂Co₂TeO₆, DPG Frühjahrstagung 2024, Berlin, DE, 2024-03-20, pdf

• Hidden symmetries and exotic orders in quantum magnets, Japan-Germany Workshop of ct.qmat & JST ー 日独ワークショップ, Würzburg, DE, 2024-02-27, pdf

• Triple-q order and spin vestigial states in Na₂Co₂TeO₆, International Conference on Highly Frustrated Magnetism 2024, IIT Madras, Chennai, IN, 2024-01-09, pdf

• Intertwined spin vestigial orders, Workshop "Asymptotic Safety meets Particle Physics and Friends", DESY Hamburg, DE, 2023-12-19, pdf

• Functional approaches to quantum magnets, Workshop "Functional Methods in Strongly Correlated Systems", Hirschegg, AT, 2023-09-15, pdf

• Fractionalized fermionic quantum criticality, Hong Kong Computational and Theoretical Physics Study Group 2023, Hong Kong, CN, 2023-05-06, pdf

• Interacting Majorana fermions, DPG Frühjahrstagung 2023, Dresden, DE, 2023-03-29, pdf

• Fractionalized fermionic quantum criticality, Workshop "Frustrated Metals and Insulators", Bangalore, IN, 2022-09-12, pdf, video

• Fractionalized fermionic quantum criticality, Workshop "Conformal Field Theory and Quantum Many-Body Physics", Montreal, CA, 2022-09-09, pdf

• Quantum criticality in frustrated magnets, Workshop "Correlations in Novel Quantum Materials", Stuttgart, DE, 2022-06-23, pdf, video

• Fractionalized fermionic quantum criticality, Workshop "Quantum Criticality: Gauge Fields and Matter", Perimeter Institute, Waterloo, CA, 2022-05-19, pdf, video

• Interacting Majorana fermions, Theory of Quantum Magnetism Seminar, FU Berlin, DE, 2022-02-04, pdf

• Topological phases of matter in frustrated quantum magnets, SPP 1666 Workshop "Topology in modern condensed matter physics and beyond", Munich, DE, 2021-10-07, pdf

• Quantum criticality between spin liquids and long-range order, ECT* Workshop "Relativistic Fermions in Flatland: theory and application", Trento, IT, 2021-07-07, pdf, video

• Interlayer interactions in α-RuCl₃, SFB 1143 Spring Workshop 2021, 2021-06-03, pdf

• Confinement transition in the QED₃-Gross-Neveu-XY universality class, APS March Meeting 2021, 2021-03-19, pdf

• Fractionalized fermionic quantum criticality in spin-orbital Mott insulators, CMT Seminar, Brookhaven National Laboratory, Upton, US, 2020-11-04, pdf

• 3D-2D equivalence of ordered states on harmonic honeycomb lattices, SPICE Workshop "Novel Electronic and Magnetic Phases in Correlated Spin-Orbit Coupled Oxides", Mainz, DE, 2019-11-12, pdf, video

• Dualities in field theories  for condensed matter, Workshop "Strongly-Interacting Field Theories 2019", DFG Research Training Group “Strong Dynamics and Criticality in Quantum and Gravitational Systems” (GRK 2522), Jena, DE, 2019-11-07, pdf

• Soluble fermionic quantum critical point in 2D, Workshop "Boundary and Bulk Criticality 2019", Würzburg, DE, 2019-10-01, pdf

• Quantum criticality in 2D Fermi systems with quadratic band touching, Korrelationstage 2019, Dresden, DE, 2019-09-19, pdf

• Unconventional criticality in fermionic systems, International Workshop of the DFG Research Training Group “Quantum Many-Body Methods in Condensed Matter Systems” (GRK 1995), Aachen/Jülich, DE, 2018-09-24, pdf

• Deconfined criticality from the QED₃-Gross-Neveu model, International Workshop on New Paradigms in Quantum Matter, Institute of Physics, Chinese Academy of Sciences, Beijing, CN, 2018-06-28, pdf

• Emergent symmetry in quantum critical Dirac systems, DPG Frühjahrstagung 2018, Berlin, DE, 2018-03-15, pdf

• Heisenberg-Kitaev physics in magnetic fields, Symposium on Field-Induced Phenomena in α-RuCl₃, APS March Meeting 2018, Los Angeles, US, 2018-03-08, pdf

• A fermionic gauge theory for bosonic deconfined criticality, 5^th Workshop on Strongly-Interacting Field Theories, DFG Research Training Group “Quantum and Gravitational Fields” (GRK 1523), Jena, DE, 2017-11-23, pdf

• Instability of the conformal phase in QED₃, Workshop on New Developments in Conformal Field Theory Above Two Dimensions, Princeton Center for Theoretical Science, Princeton, US, 2017-03-07, pdf

• Spontaneous breaking of Lorentz symmetry in QED₃, 8^th International Conference on the Exact Renormalization Group, International Centre for Theoretical Physics, Trieste, IT, 2016-09-19, pdf, video

Introductory talks & colloquia

• Emergent phenomena in quantum materials, Winter Colloquium of the SAX-QT Network, IFW Dresden, 2025-12-18, pdf

• Dirac fermions in condensed matter systems, Graduate Days on "Quantum Field Theory applied to Condensed Matter Systems", Graz, AT, 2024-05-27, pdf

• Emergent phenomena in quantum materials,  Hong Kong Computational and Theoretical Physics Study Group 2023, Hong Kong, CN, 2023-05-06, pdf, video

• Emergent phenomena in quantum materials, Department of Physics Colloquium, University of Alberta, Edmonton, CA, 2023-03-17, pdf

• Emergence of relativistic flatland fermions in systems without fermions,  ECT* Colloquium, Trento, IT, 2020-10-01 (online), pdf, video

• Introduction to the Kitaev model, Seminar of the Research Training Group 1621 "Itinerant magnetism and superconductivity in intermetallic compounds", Dresden, DE, 2019-02-05, pdf

• Frustrated magnetism: From exact solutions to real materials (in German), 10. jDPG Theoretikerworkshop "Exakte Methoden und nicht-perturbative Methoden in der Physik", Windischleuba, DE, 2019-01-06, pdf

• Emergent symmetries at quantum critical points, Summer School of the Collaborative Research Center 1143 "Correlated Magnetism: From Frustration to Topology", Meißen, DE, 2018-08-21, pdf

• Introduction to Heisenberg-Kitaev physics in magnetic fields, Students’ Seminar of the Integrated Research Training Group of SFB 1143, IFW Dresden, DE, 2018-06-07, pdf