Alain Pumir^1,2,*, Haitao Xu^2,3,†, Eberhard Bodenschatz^2,4,5, and Rainer Grauer⁶

• ¹Ecole Normale Supérieure de Lyon, 69007 Lyon, France
• ²Max Planck Institute for Dynamics and Self-Organization (MPIDS), 37077 Göttingen, Germany
• ³Center for Combustion Energy and Department of Thermal Engineering, Tsinghua University, 100084 Beijing, China
• ⁴Institute for Nonlinear Dynamics, University of Göttingen, 37077 Göttingen, Germany
• ⁵Laboratory of Atomic and Solid State Physics and Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853, USA
• ⁶Institute for Theoretical Physics I, Ruhr Universität Bochum, 44780 Bochum, Germany

• ^*alain.pumir@ens-lyon.fr
• ^†hxu@tsinghua.edu.cn