New Duality Relations for Classical Ground States

Details New Duality Relations for Classical Ground States New Duality Relations for Classical Ground States

2007-10-28

arxiv.org/abs/0710.5315v3

Physics

Condensed Matter

Soft Condensed Matter

11 pages, 2 figures. Slightly revised version that corrects typos. This article will be appearing in Physical Review Letters i

Scientific paper

10.1103/PhysRevLett.100.020602

We derive new duality relations that link the energy of configurations associated with a class of soft pair potentials to the corresponding energy of the dual (Fourier-transformed) potential. We apply them by showing how information about the classical ground states of short-ranged potentials can be used to draw new conclusions about the nature of the ground states of long-ranged potentials and vice versa. They also lead to bounds on the T=0 system energies in density intervals of phase coexistence, the identification of a one-dimensional system that exhibits an infinite number of ``phase transitions," and a conjecture regarding the ground states of purely repulsive monotonic potentials.

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