Jonas Rønning

nnp Jonas Rønning

Postdoctoral Researcher

I am a theoretical physicist with interests in fluid dynamics, ordered systems, soft condensed matter and non-equilibrium statistical mechanics. My current research project is on a fluid mechanic analogue to the Aharonov-Bohm (AB) effect. The AB effect is a quantum phenomen where an electricaly charged particle is affected by the magnetic vector potential even when the magnetic field in the permited region is zero. In classical electrodynamics the magnetic vector potential is a mathematical tool and it is only the magnetic field that can have observable consequences, but in quantum mechanics the AB effect makes it possible to observe an interaction between a particle and the vector potential when the field is absent. The fluid analogue to the electricaly charged particle is surface waves, while the vector potetntial (in the abcence of a magnetic field) takes the form of an irrotational vortex.

Education

  • PhD Condensed Matter Physics, University of Oslo 2023
  • MSc Theoretical Physics, University of Oslo 2020
  • BSc Physics, Norwegian Institute of Science and Technology 2018

Publications

  • Rønning J., Renaud J., Doosthmohammadi A. and Angheluta A. (2023) Spontaneous flows and dynamics of full integer topological defects in polar active matter. Soft Matter, 19(39), 7513-7527
  • Skogvoll V., Rønning J., Salvalaglio M. and Angheluta A. (2023) A unified field theory of topological defects and non-linear local excitations. npj Comput Mater 9, 122
  • Andersen B. H., Renaud J., Rønning J., Doosthmohammadi A. and Angheluta A. (2023) Symmetry-restoring crossover from defect-free to defect-laden turbulence in polar active matter. Phys. Rev. Fluids 8, 063101
  • Rønning J. and Angheluta A. (2023) Precursory patterns to vortex nucleation in stirred Bose-Einstein condensates. Phys. Rev. Research 5, 023108
  • Rønning J., Marchetti M. C. and Angheluta A. (2023) Defect self-propulsion in active nematic films with spatially varying activity. R. Soc. open sci. 10221229 221229
  • Moen E. Q. Z., Olsen K. S., Rønning J. and Angheluta A. (2022) Trapping of active Brownian and run-and-tumble particles: A first-passage time approach. Phys. Rev. Research 4, 043012
  • Rønning J., Marchetti M. C., Bowick M. J. and Angheluta A. (2022) Flow around topological defects in active nematic films. Proc. R. Soc. A. 478(2257), 20210879
  • Rønning J., Skaugen A, Hernández-García E., Lopez C. and Angheluta A. (2020) Classical analogies for the force acting on an impurity in a Bose-Einstein condensate. New J. Phys. 22 073018