Atomic and optical tests of Lorentz symmetry

TL;DR

This paper reviews recent atomic and optical physics experiments that test Lorentz symmetry, providing improved bounds on violations in photon and gravity sectors, based on presentations from the CPT '07 meeting.

Contribution

It summarizes new experimental bounds on Lorentz violation coefficients in photon and gravity sectors from CPT '07.

Findings

Improved bounds on Lorentz violation in the photon sector.

First bounds on Lorentz violation coefficients in the gravity sector.

Enhanced sensitivity of atomic and optical tests to fundamental symmetries.

Abstract

This article reports on the Fourth Meeting on Lorentz and CPT Symmetry, CPT '07, held in August 2007 in Bloomington, Indiana, USA. The focus is on recent tests of Lorentz symmetry using atomic and optical physics. Results presented at the meeting include improved bounds on Lorentz violation in the photon sector, and the first bounds on several coefficients in the gravity sector.