Jamming

We seek to answer some of the principal questions underlying jamming phenomena, such as how disordered assemblies of athermal particles acquire rigidity, how this rigidity is encoded in microscopic structure and how it controls elastic and flow properties. Emulsions provide an experimental platform for this problem: they are frictionless, athermal, and accessible in 3D by confocal microscopy, allowing a direct bridge between microscopic geometry, force networks, and macroscopic mechanics. By combining detailed 3D imaging with minimal theoretical models, we show that jamming follows universal principles independent of material properties. This perspective connects granular materials, emulsions, foams, and even biological tissues, and provides a foundation for future studies of rigidity transitions in active and living matter.