Explicit excluded volume of cylindrically symmetric convex bodies

Abstract

We represent explicitly the excluded volume Ve{B1,B2} of two generic cylindrically symmetric, convex rigid bodies, B1 and B2, in terms of a family of shape functionals evaluated separately on B1 and B2. We show that Ve{B1,B2} fails systematically to feature a dipolar component, thus making illusory the assignment of any shape dipole to a tapered body in this class. The method proposed here is applied to cones and validated by a shape-reconstruction algorithm. It is further applied to spheroids (ellipsoids of revolution), for which it shows how some analytic estimates already regarded as classics should indeed be emended.

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Cited by in corpus (3)

• Density functional theory for dense nematics with steric interactions
• The excluded volume of two-dimensional convex bodies: Shape reconstruction and non-uniqueness
• Nematic-isotropic transition in a density-functional theory for hard spheroidal colloids