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Introduction

Chapter
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Part of the SpringerBriefs in Molecular Science book series (BRIEFSMOLECULAR)

Abstract

The concept of an inter-particle potential energy is introduced, and long- and short-range interaction regions are identified. Following the multipole series expansion of the charge density, the static coupling potential between two electronic distributions is obtained. Quantum mechanical perturbation theory is then employed to extract the electrostatic, induction and dispersion energy contributions to the total interaction energy at long-range. To account for the electromagnetic nature of forces between particles of matter, the photon is introduced within the framework of quantum electrodynamics theory. Manifestations of dispersion forces between microscopic entities and macroscopic bodies are briefly reviewed.

Keywords

Inter-particle potential Quantum electrodynamics Real and virtual photons Van der Waals dispersion force Casimir-Polder energy Casimir shift 

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Copyright information

© The Author(s)  2016

Authors and Affiliations

  1. 1.Department of ChemistryWake Forest UniversityWinston-SalemUSA

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