Quantum Electrodynamics of Nanosystems

TL;DR

This paper investigates how electromagnetic properties and Casimir forces in nanosystems are influenced by temperature and density, using quantum electrodynamics and renormalization techniques, with applications to nanotubes and biomolecules.

Contribution

It introduces a quantum field theory approach to analyze the electromagnetic behavior of nanosystems in hot, dense media, highlighting medium-dependent properties.

Findings

Electromagnetic properties depend on temperature and density.

Casimir force varies with medium parameters.

Applications demonstrated on nanotubes and biomolecules.

Abstract

Quantum description of mulitiparticle nano-systems is studied in a hot and dense electromagnetic medium. We use renormalization techniques of quantum field theory to show that the electromagnetic properties like electric permittivity and magnetic permeability depend on the temperature and density of the media. Casimir force also depends upon the physical properties of the medium and becomes a function of these parameters within the nano-systems. We discuss the effect of the Casimir force on the nanosystems in terms of temperature and density of the system. We present carbon nanotubes and biomolecules as examples.