On the rotation of the universe

TL;DR

This paper proposes that the observed polarization anisotropy in distant radio sources can be explained by a global cosmic rotation, offering a geometric and physics-consistent alternative to previous interpretations.

Contribution

It introduces a novel explanation for polarization anisotropy based on cosmic rotation, within the framework of conventional physics.

Findings

Polarization dipole anisotropy can result from cosmic rotation

The explanation is purely geometric and consistent with standard physics

Provides an alternative to previous non-geometric explanations

Abstract

We point on a different possible explanation of the observations reported recently by Nodland and Ralston, PRL 78 (1997) 3043 [astro-ph/9704196]. The dipole anisotropy of the polarization of radiation from the distant radio sources can be caused by the global cosmic rotation. This explanation is of purely geometric origin and is completely within the conventional physics.