MPI-DS Colloquium: Bulk condensation by an active edge, and other stories in active granular mat-ter

MPI-DS Colloquium

  • Datum: 17.06.2024
  • Uhrzeit: 14:15 - 15:15
  • Vortragende(r): Prof. Dr. Sriram Ramaswamy
  • Indian Institute of Science, Bangalore
  • Ort: Max-Planck-Institut für Dynamik und Selbstorganisation (MPIDS)
  • Raum: Prandtl Lecture Hall and Zoom Meeting ID: 959 2774 3389 Passcode: 651129
  • Gastgeber: MPIDS / LMP
  • Kontakt:
My talk will present experiments and theory, supported by mechanically detailed simulations, on a childishly simple realisation of active matter. The system is a monolayer of millimetre-sized grains energised by vertical vibration. Depending on the (a)symmetries of their shape, these particles can self-propel, or partition their energy unequally between two directions of motion, or simply diffuse. After a summary of our early work on flocking and our recent studies on non-reciprocal elastic "taxis", I will present our latest findings on bulk condensation and sublimation of spherical beads by a tiny population of orientable motile grains, which we understand within the framework of a theory with a naturally non-reciprocal Cahn-Hilliard structure.
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