Anisotropic expansion of the Universe and generation of quantum interference in light propagation

TL;DR

This paper explores how anisotropic expansion in a Bianchi type I universe can induce quantum interference effects in light, linking gravitational anisotropy to observable quantum phenomena during photon propagation.

Contribution

It demonstrates that anisotropic cosmic expansion can produce quantum interference in light, revealing a novel gravitational-quantum connection in cosmological models.

Findings

Quantum interference can occur due to anisotropic expansion.

Gravitational effects can induce quantum phenomena in light.

Purely gravitational phenomena can manifest as quantum effects.

Abstract

We investigate the electrodynamic in a Bianchi type I cosmological model. This scenario reveals the possibility that photons, during their traveling, can make quantum interference. This effect is only due to the presence of two different axes of expansion in the cosmic evolution. In other word, it is possible to conclude that a purely metrical - or, equivalently, gravitational - phenomenon gives rise up to a quantum effect that manifests itself in the light propagation.