Two symmetrically coupled populations of N oscillators with inertia m
display chaotic solutions with broken symmetry similar to experimental
observations with mechanical pendula. In particular, we report the first
evidence of intermittent chaotic chimeras, where one population is synchronized
and the other jumps erratically between laminar and turbulent phases. These
states have finite life-times diverging as a power-law with N and m. Lyapunov
analyses reveal chaotic properties in quantitative agreement with theoretical
predictions for globally coupled dissipative systems.Comment: 6 pages, 5 figures SUbmitted to Physical Review E, as Rapid
Communicatio