many-body force

many-body force

[′men·ē ′bäd·ē ‚fȯrs]
(physics)
A force exerted on a particle, in the presence of two or more other particles, which differs from the vector sum of the forces which would be exerted on it if each of the other particles were present alone.
References in periodicals archive ?
It considers only two principal contributions to the many-body force in compressed polymer brushes: a short-range repulsion, due to the osmotic pressure that arises from the increased density of monomers in the compressed region, and a medium range attraction whose origin is the elastic energy of the polymer chains.
He considers intermolecular forces, the resonant transfer of energy, retarded dispersion forces, many-body forces, and intermolecular interactions in a radiation field.
Energy shift and transfer rate in relation to specific two- and many-body forces