Efficiency at maximum power of interacting molecular machines
  We investigate the efficiency of systems of molecular motors operating at maximum power. We consider two models of kinesin motors on a microtubule: for both the simplified and the detailed model, we find that the many-body exclusion effect enhances the efficiency at maximum power of the many-motor system, with respect to the single motor case. Remarkably, we find that this effect occurs in a limited region of the system parameters, compatible with the biologically relevant range. 
N. Golubeva, A. Imparato
cond-mat.stat-mech cond-mat.soft physics.bio-ph