The detection of low-energy Quantum Gravity fluctuations with entangled states

TL;DR

This paper proposes a thought experiment using quantum optical technologies to detect low-energy quantum gravity fluctuations by observing decoherence in entangled photon pairs, potentially revealing new gravitational phenomena.

Contribution

It introduces a novel method to detect low-energy quantum gravity effects through entangled photon decoherence, expanding the scope of quantum gravity detection techniques.

Findings

Sets limits for decoherence of entangled photons in space

Suggests detectability of quantum gravity fluctuations with current technology

Proposes a new approach to observe gravitational field perturbations

Abstract

We propose a thought experiment to detect low-energy Quantum Gravity phenomena using Quantum Optical Information Technologies. Gravitational field perturbations, such as gravitational waves and quantum gravity fluctuations, decohere the entangled photon pairs, revealing the presence of gravitational field fluctuations including those more speculative sources such as compact extra dimensions and the sub-millimetric hypothetical low-energy quantum gravity phenomena and then set a limit for the decoherence of photon bunches and entangled pairs in space detectable with the current astronomical space technology.