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Related Experiment Video

Updated: Jul 13, 2026

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

Published on: July 30, 2020

Lorentz-violating electrodynamics and the cosmic microwave background.

V Alan Kostelecký¹, Matthew Mewes

¹Physics Department, Indiana University, Bloomington, Indiana 47405, USA.

Physical Review Letters

|August 7, 2007

Summary

Researchers investigated potential Lorentz-violating effects in the cosmic microwave background. Using polarimetric observations, they searched for violations linked to electrodynamics operators.

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Last Updated: Jul 13, 2026

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Area of Science:

Cosmology and astrophysics
Fundamental physics

Background:

The cosmic microwave background (CMB) provides a unique window into the early universe.
Lorentz invariance is a cornerstone of modern physics, but its potential violation is explored in various theoretical frameworks.

Purpose of the Study:

To systematically classify operators that could lead to Lorentz violation in electrodynamics.
To search for evidence of Lorentz violation using observational data from the CMB.

Main Methods:

Classification of renormalizable and nonrenormalizable operators for Lorentz violation.
Analysis of polarimetric observations of the cosmic microwave background.

Main Results:

A systematic framework for operators causing Lorentz violation in electrodynamics was developed.
Searches for specific violations using CMB polarimetry were conducted.

Conclusions:

The study provides theoretical tools and observational constraints for Lorentz violation.
Further investigation using CMB data can refine our understanding of fundamental symmetries.