Self-replicating holes in a vertically vibrated dense suspension

H. Ebata, M. Sano

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


We find self-replicating holes on the surface of a vertically vibrated potato starch suspension. Above certain acceleration, the finite-amplitude deformation of the surface grows to form a hole that penetrates the fluid layer. The circular shape of the hole is not stable, and the hole begins to replicate just like the self-replicating spots in chemical reaction-diffusion systems. At high acceleration, these holes exhibit spatiotemporal chaos. By assessing the statistical properties in a steady state, we show that fluctuation in the number of holes can be understood by a master equation.

Original languageEnglish
Article number088301
JournalPhysical review letters
Issue number8
Publication statusPublished - Aug 16 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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