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We illustrate an atomistic periodic two-dimensional stationary shear flow, ux = h x˙ i = ˙y, using the simplest possible example, the periodic shear of just two particles! We use a short-ranged “realistic” pair potential, φ(r < 2) = = (2 − r) 6 − 2(2 − r) 3 . Many body simulations with it are capable of modelling the gas, liquid, and solid states of matter. A useful mechanics generating steady...
We consider the practicalities of defining, simulating, and characterizing “Liquids” from a pedagogical standpoint based on atomistic computer simulations. For simplicity and clarity we study two-dimensional systems throughout. In addition to the infinite-ranged Lennard-Jones 12/6 potential we consider two shorter-ranged families of pair potentials. At zero pressure one of them includes just nearest...
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