Dynamic Susceptibilities in Dense Soft Athermal Spheres Under a Finite-Rate Shear

Dynamic Susceptibilities in Dense Soft Athermal Spheres Under a Finite-Rate Shear

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The mechanical responses of here dense packings of soft athermal spheres under a finite-rate shear are studied by means of molecular dynamics simulations.We investigate the volume fraction and shear rate dependence of the fluctuations in the shear stress and the interparticle contact number.In particular, we quantify us polo assn mens sweaters them by defining the susceptibility as the ratio of the global to local fluctuations.The obtained susceptibilities form ridges on the volume fraction-shear rate plane, which are reminiscent of the Widom lines around the critical point in an equilibrium phase transition.