Helmholtz-Zentrum Dresden-Rossendorf

Geo- and Astrophysics

Dr. Frank Stefani

Head Geo- and Astrophysics

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Fields of interest

• Magnetohydrodynamics: Dynamo Theory and Experiments, Magnetorotational instability
• Inverse Problems: Velocity measurement in conducting fluids
• Geodesy: Geoid Determination, Radar Altimetry for Antarctic Ice Shelfs
• Quantum theory: Quantum Field Theory of Disordered Systems, PT-symmetry

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Publications

C.V.

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Nature Reviews Physics paper on liquid-metal experiments on geophysical and astrophysical phenomena

PRL paper on Alfvén wave experiments in liquid Rubidium with coinciding Alfvén wave and sound speeds

PRL paper on four-torus solution in MHD spherical Couette flow

Physics Reports review on hydromagnetic Taylor-Couette flows

PRL paper on prediction of dynamo action in the DRESDYN precession experiment

PRL paper on experimental evidence of azimuthal magnetorotational instability

PRL paper on extending helical MRI to Keplerian profiles

PRL paper on Tayler instability experiment

PRL paper on the role of soft-iron propellers in the VKS dynamo experiment

PRL paper on helical MRI experiment

PRL paper on the spectral background of geodynamo reversals

RMP-Colloquium: Laboratory Experiments on Hydromagnetic Dynamos

PRL paper on magnetic field saturation in the Riga dynamo experiment

Physical Review Focus Story on Riga dynamo experiment