Three-body radiation dynamics in systems with anisotropic nanoparticles

TL;DR

This study investigates how the orientations of anisotropic nanoparticles affect their temperature evolution and thermalization times in two- and three-body systems, revealing orientation-dependent control of thermal dynamics.

Contribution

It introduces the impact of nanoparticle orientations on thermalization dynamics, highlighting their significance over distance in certain configurations.

Findings

Orientation drastically affects temperature evolution in two-body systems.

Third nanoparticle orientation influences thermalization in three-body systems.

Nanoparticle orientations can be more critical than distance in some arrangements.

Abstract

The time evolution of temperatures of anisotropic nanoparticles in two and three-body systems are simulated for various relative orientations. Nanoparticles are immersed in a thermal bath at constant temperature. It is shown that in two-body systems, the relative orientation of nanoparticles could drastically affect the dynamics of temperature evolution and thermalization time scale. Moreover, in some configurations, the temperature difference in initial state has a minor effect on the dynamics of temperatures. In three-body systems, the orientation of the third nanoparticle influences the temperature dynamics, which allows one to control the thermalization time scales between anisotropic nanoparticles. Also, in addition to previously known contribution of the smallest distance between isotropic nanoparticles on the thermalization time scales, it is shown that the nanoparticles' orientations are more important in some particular arrangements.