Relativistic and Electromagnetic Molecular Dynamics Simulations for a Carbon-Gold Nanotube Accelerator

TL;DR

This paper presents relativistic molecular dynamics simulations of a carbon-gold nanotube accelerator, demonstrating ion acceleration and relativistic electron velocities at extremely high intensities, with insights into electromagnetic and electrostatic field interactions.

Contribution

It introduces a novel simulation approach combining relativistic dynamics with electromagnetic fields for nanotube accelerators, highlighting behaviors at ultra-high energies.

Findings

Gold and carbon ions exhibit pulsation oscillations at high intensities.

Electrons reach relativistic velocities under intense electromagnetic pulses.

Rapid expansion and electromagnetic radiation influence ion acceleration dynamics.

Abstract

Relativistic molecular dynamics are described in ultra-high temperature and MeV energy behaviors. In strongly-coupled systems, the Coulomb electrostatic field is collected in the infinite space, and the electromagnetic fields are added in the coordinate space. Separation of the electromagnetic and electrostatic electric fields is a good approximation for short time periods. For a numerical application, a nanotube accelerator under an $E \times B$ pulse is studied. Positive ions are accelerated in the parallel direction, whereas the electrons proceed in the perpendicular direction. Rapid expansion to infinite space and short-range electromagnetic radiation cooperate for large intensities. At $10^{22}\rm{W/cm}^{2}$, pulsation oscillations for gold and carbon ions flare up and electrons acquire the relativistic velocities. They are observed in relativistic molecular dynamics simulation.