Monday, July 9, 2012

1207.1624 (Lasse Bøhling et al.)

No separate roles of repulsive and attractive forces for the physics of
liquids
   [PDF]

Lasse Bøhling, Trond S. Ingebrigtsen, Arno Veldhorst, Nicholas P. Bailey, Jesper S. Hansen, Thomas B. Schrøder, Søren Toxvaerd, Jeppe C. Dyre
According to standard theory repulsive and attractive intermolecular forces play entirely different roles for the physics of liquids. We argue from theory and simulation that this picture cannot reasonably be upheld. This reflects the basic fact that the motion of a given particle is determined by the total force on it, not the individual contributions to the force from other particles, which in terms of the pair potential is the quantity usually discussed in liquid-state theory.
View original: http://arxiv.org/abs/1207.1624

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