Non-Perturbative Theory of Dispersion Interactions

TL;DR

This paper develops a comprehensive non-perturbative theoretical framework for dispersion interactions between extended dipoles, addressing limitations of traditional perturbative approaches and including finite dipole size effects.

Contribution

It introduces a full non-perturbative theory of dispersion forces and discusses finite dipole size corrections, expanding understanding beyond conventional perturbative methods.

Findings

Established a non-perturbative model for dispersion interactions

Analyzed the validity limits of perturbative dispersion force theory

Incorporated finite dipole size effects into the theoretical framework

Abstract

Some open questions exist with fluctuation-induced forces between extended dipoles. Conventional intuition derives from large-separation perturbative approximations to dispersion force theory. Here we present a full non-perturbative theory. In addition we discuss how one can take into account finite dipole size corrections. It is of fundamental value to investigate the limits of validity of the perturbative dispersion force theory.