Particle interference as a test of Lorentz-violating electrodynamics

TL;DR

Particle interference experiments can detect tiny Lorentz-violating effects in electrodynamics, providing a new method to improve bounds on such parameters by observing changes in interference patterns caused by static charges and currents.

Contribution

The paper demonstrates that particle interference experiments are sensitive to Lorentz-violating effects, offering a novel approach to testing fundamental physics beyond standard electrodynamics.

Findings

Interference patterns are affected by Lorentz-violating fields.

Experiments can set tighter bounds on Lorentz-violating parameters.

Static charges and currents induce detectable electromagnetic effects.

Abstract

In Lorentz-violating electrodynamics a steady current (and similarly a static charge) generates both static magnetic and electric fields. These induced fields, acting on interfering particles, change the interference pattern. We find that particle interference experiments are sensitive to small Lorentz violating effects, and thus they can be used to improve current bounds on some Lorentz-violating parameters.