摘要
Several purely repulsive potentials （PRP） are investigated theoretically. In contrast to the traditional van der Waals picture, it is found that normal gas-liquid transition emerges only on condition that the PRP as a function of particle separation holds a discontinuous point, or an indifferentiable point, or is differentiable but with an additional length scale besides the hard sphere diameter.
Several purely repulsive potentials （PRP） are investigated theoretically. In contrast to the traditional van der Waals picture, it is found that normal gas-liquid transition emerges only on condition that the PRP as a function of particle separation holds a discontinuous point, or an indifferentiable point, or is differentiable but with an additional length scale besides the hard sphere diameter.
基金
Supported by the National Natural Science Foundation of China under Grant No 20673150.
