Mode Conversion and Period Doubling in a Liquid Rubidium Alfvén-Wave Experiment with Coinciding Sound and Alfvén Speeds
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
We report Alfvén-wave experiments with liquid rubidium at the Dresden High Magnetic Field Laboratory. Reaching up to 63 T, the pulsed magnetic field exceeds the critical value of 54 T at which the Alfvén speed coincides with the sound speed. At this threshold, we observe a period doubling of an applied 8 kHz cw excitation, which is consistent with the theoretical expectation of a parametric resonance between magnetosonic waves and Alfvén waves. Similar mode conversions are discussed as a possible mechanism for heating the solar corona.
Details
Original language | English |
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Article number | 275001 |
Journal | Physical review letters |
Volume | 127 |
Issue number | 27 |
Publication status | Published - 31 Dec 2021 |
Peer-reviewed | Yes |
External IDs
PubMed | 35061404 |
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