On the Motion of Compact Objects in Relativistic Viscous Fluids
General Relativity and Quantum Cosmology
2024-12-10 v1 High Energy Physics - Theory
Abstract
We present a world-line effective field theory of compact objects moving relativistically through a viscous fluid. The theory is valid when velocity gradients are small compared to the inverse size of the object. Working within the EFT eliminates the need to solve a boundary value problem by turning all interactions between the fluid and the object into a source term in the action. We use the EFT to derive the relativistic equations of motion for a compact object immersed in a viscous fluid in a curved background.
Keywords
Cite
@article{arxiv.2412.06747,
title = {On the Motion of Compact Objects in Relativistic Viscous Fluids},
author = {Beka Modrekiladze and Ira Z. Rothstein and Jordan Wilson-Gerow},
journal= {arXiv preprint arXiv:2412.06747},
year = {2024}
}
Comments
22 pages, 1 appendix