%0 Journal Article %1 PhysRevLett.127.275001 %A Stefani, F %A Forbriger, J %A Gundrum, Th %A Herrmannsdörfer, T %A Wosnitza, J %D 2021 %I American Physical Society %J Phys. Rev. Lett. %K a %N 27 %P 275001 %R 10.1103/PhysRevLett.127.275001 %T Mode conversion and period doubling in a liquid rubidium Alfvén-wave experiment with coinciding sound and Alfvén speeds %U https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.127.275001 %V 127 %X 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.

@article{PhysRevLett.127.275001, 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.}, added-at = {2023-03-08T15:02:01.000+0100}, author = {Stefani, F and Forbriger, J and Gundrum, Th and Herrmannsdörfer, T and Wosnitza, J}, biburl = {https://www.bibsonomy.org/bibtex/224a3e281f84fffbd3012c69a79e0893a/ctqmat}, day = 29, description = {Mode Conversion and Period Doubling in a Liquid Rubidium Alfvén-Wave Experiment with Coinciding Sound and Alfvén Speeds}, doi = {10.1103/PhysRevLett.127.275001}, interhash = {20b0f15a04efb833cc8fefe4f76ba408}, intrahash = {24a3e281f84fffbd3012c69a79e0893a}, journal = {Phys. Rev. Lett.}, keywords = {a}, month = {12}, number = 27, numpages = {5}, pages = 275001, publisher = {American Physical Society}, timestamp = {2023-03-14T07:29:18.000+0100}, title = {Mode conversion and period doubling in a liquid rubidium Alfvén-wave experiment with coinciding sound and Alfvén speeds}, url = {https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.127.275001}, volume = 127, year = 2021 }