We study a system of uniaxial hard ellipsoids by molecular dynamics simulations, changing both the aspect-ratio X0 (X0 = a/b, where a is the length of the revolution axis and b is the length of the two other axes) and the packing fraction ø. We calculate the translational 〈r2(t)〉 and rotational 〈Φ2(t)〉 mean squared displacements, the translational Dtrans and the rotational Drot diffusion coefficients and the associated isodiffusivity lines in the ø- X0 plane. For the first time, we...
