Macroscopic Objects, Intrinsic Spin, and Lorentz Violation

TL;DR

This paper investigates how Lorentz violation, as described by the Standard-Model Extension, affects the motion of macroscopic objects with intrinsic spin in the classical, nonrelativistic limit, providing insights into potential observable effects.

Contribution

It derives classical equations of motion for macroscopic spinning objects within the SME framework, highlighting effects of Lorentz violation on their dynamics.

Findings

Lorentz violation can alter the trajectories of spinning macroscopic objects.

The derived equations can be used to test Lorentz symmetry with macroscopic experiments.

Potential experimental signatures of Lorentz violation in macroscopic spin systems.

Abstract

The framework of the Standard-Model Extension (SME) provides a relativistic quantum field theory for the study of Lorentz violation. The classical, nonrelativistic equations of motion can be extracted as a limit that is useful in various scenarios. In this work, we consider the effects of certain SME coefficients for Lorentz violation on the motion of macroscopic objects having net intrinsic spin in the classical, nonrelativistic limit.