Radiative Heat Transfer in Anisotropic Many-Body Systems: Tuning and Enhancement

TL;DR

This paper develops a comprehensive formalism for radiative heat transfer in anisotropic many-body systems, revealing significant enhancement and tunability of heat exchange through particle orientation.

Contribution

It extends existing isotropic heat transfer theory to anisotropic systems and incorporates thermal bath effects, enabling control over heat exchange.

Findings

Radiative heat exchange can be enhanced by several orders of magnitude.

Heat transfer and cooling/heating are highly tunable via particle orientation.

Anisotropic particles exhibit significantly different behavior compared to isotropic ones.

Abstract

A general formalism for calculating the Radiative Heat Transfer in many body systems with anisotropic component is presented. Our scheme extends the theory of radiative heat transfer in isotropic many body systems to anisotropic cases. In addition, the radiative heating of the particles by the thermal bath is taken into account in our formula. It is shown that the radiative heat exchange (HE) between anisotropic particles and their radiative cooling/heating (RCH) could be enhanced several order of magnitude than that of isotropic particles. Furthermore, we demonstrate that both the HE and RCH can be tuned dramatically by particles relative orientation in many body systems.