2 papers
cond-mat.soft2020
Imaging the emergence of bacterial turbulence: phase diagram and transition kinetics
Yi Peng, Zhengyang Liu, Xiang Cheng
We experimentally study the emergence of collective bacterial swimming, a phenomenon often referred to as bacterial turbulence. A phase diagram of the flow of 3D E. coli suspension…
cond-mat.soft2018
Symmetric shear banding and swarming vortices in bacterial "superfluids"
Shuo Guo, Devranjan Samanta, Yi Peng +2
Bacterial suspensions--a premier example of active fluids--show an unusual response to shear stresses. Instead of increasing the viscosity of the suspending fluid, the emergent col…