The mechanical and transport properties of jammed materials originate from anunderlying per- colating network of contact forces between the grains. Usingextensive simulations we investigate the force-percolation transition of thisnetwork, where two particles are considered as linked if their interparticleforce overcomes a threshold. We show that this transition belongs to the randompercolation universality class, thus ruling out the existence of long-rangecorrelations between the forces. Through a combined size and pressure scalingfor the percolative quantities, we show that the continuous force percolationtransition evolves into the discontinuous jamming transition in the zeropressure limit, as the size of the critical region scales with the pressure.
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