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  • Title: N-Body interactions in soft-sphere coarse-grained models of star polymers.
    Author: Pelissetto A.
    Journal: Phys Rev E Stat Nonlin Soft Matter Phys; 2012 Feb; 85(2 Pt 1):021803. PubMed ID: 22463232.
    Abstract:
    We consider the coarse-grained approach in which star polymers are mapped onto atoms located at the centers of the stars interacting by means of ultrasoft potentials. We generalize the Witten-Pincus formula to all n-body potentials: in the good-solvent regime all potentials show an ultrasoft logarithmic divergence when the relative distance of all n stars goes to zero, with coefficients that can be related to the partition-function exponents γ(f).
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