Postdoctoral Fellow
Research group | Semiconductor physics
Main supervisor | Marianne E. Bathen
Co-supervisor | -
Affiliation | Department of Physics, UiO
Contact | g.f.lange@fys.uio.no
Short bio
I graduated from the University of Oslo in 2018 with a BSc. in Physics and a BSc. in Computational Informatics. I then went on to complete a M.Sc. in Mathematical and Theoretical Physics at the University of Oxford, before moving on to the University of Cambridge for a PhD. I finished my PhD in 2023 with a thesis titled "Band topology beyond symmetry eigenvalues with applications to electronic and phononic systems". After my PhD, I worked as a postdoctoral fellow at the Max Planck institute for the physics of complex systems in Dresden, Germany, before coming back to Oslo.
Research interests and hobbies
My research lies at the intersection of theoretical physics and material science. I work mostly in the field of topological materials. Most of my research is concerned with elucidating novel topological effects in simplified models, and then try to find real materials where these effects will occur. In my DSTrain project, I will work on investigating the usefulness of these topological effects for quantum technology, with a particular emphasis on quantum sensing.
Outside of research, you will mostly find me either listening to or playing classical music.
DSTrain project
Topological materials for quantum technology
Quantum technology may hold the key to the future. Quantum computers can pave the way to faster and more energy efficient algorithms, and quantum sensors can provide vital data to make important policy decisions on health and sustainability. Harnessing this technology, however, requires significant technological proficiency, as quantum effects are generally fickle and easily destroyed by noise. One way to avoid this problem is to employ topological materials. This exotic class of materials host quantum effects which are inherently robust to noise, making them a promising avenue for future quantum technologies. My project proposes a systematic investigation into the use of topological materials for quantum technology, with a particular focus on quantum sensing.
Publications
DSTrain publications
Previous publications
Eaton, A. G., Popiel, N. J. M., Xu, K.-J., Hickey, A. J., Liu, H., Hatnean, M. C., . . . Sebastian, S. E. (2024). Electrical transport signatures of metallic surface state formation in the strongly-correlated insulator FeSb2. arXiv: 2403.04550
Lange, G.F., Pottecher, J. D., Robey, C., Monserrat, B., & Peng, B. (2024). Negative Refraction of Weyl Phonons at Twin Quartz Interfaces. ACS Materials Letters, 6(3), 847–855. [Journal cover].
Peng, B., Lange, G.F., Bennett, D., Wang, K., Slager, R. J., & Monserrat, B. (2024). Photoinduced Electronic and Spin Topological Phase Transitions in Monolayer Bismuth. Phys. Rev. Lett., 132(11), 116601.
Hamara, D., Lange G.F, Kholid, F. N., Markou, A., Felser, C., Slager, R. J., & Ciccarelli, C. (2023). Ultrafast helicity-dependent photocurrents in Weyl Magnet Mn3Sn. Communications Physics, 6(1), 1–7.
Lange, G. F., Bouhon, A., & Slager, R.-J. (2023). Projected spin texture as a bulk indicator of fragile topology. Phys. Rev. Research, 5, 033013.
Lange, G. F., Bouhon, A., Monserrat, B., & Slager, R.-J. (2022). Topological continuum charges of acoustic phonons in two dimensions and the Nambu-Goldstone theorem. Phys. Rev. B, 105, 064301.
Bouhon, A., Lange, G. F., & Slager, R.-J. (2021). Topological correspondence between magnetic space group representations and subdimensions. Phys. Rev. B, 103, 245127. [Editors’ Suggestion].
Lange, G. F., Bouhon, A., & Slager, R.-J. (2021). Subdimensional topologies, indicators, and higher order boundary effects. Phys. Rev. B, 103, 195145.
Lee, K., Lange, G. F., Wang, L. L., Kuthanazhi, B., Trevisan, T. V., Jo, N. H., . . . Kaminski, A. (2021). Discovery of a weak topological insulating state and van Hove singularity in triclinic RhBi2. Nature Communications, 12(1), 1–8.
R?ising, H. S., Scaffidi, T., Flicker, F., Lange, G. F., & Simon, S. H. (2019). Superconducting order of Sr2RuO4 from a three-dimensional microscopic model. Phys. Rev. Research, 1(3), 33108.