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arXiv · 2506.05534

Stringent requirements for detecting light-induced gravitational effects using interferometry

F. Fillion-Gourdeau·S. MacLean
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Abstract

Intense laser fields have been proposed as a means to generate light-induced gravitational effects, providing a novel approach to investigate gravity and its coupling to electromagnetism in a controlled laboratory setting. In this article, a detection scheme based on interferometry is introduced to assess the feasibility of observing such effects. Initially, the space-time deformation and the resulting induced phase difference are evaluated in homogeneous electric fields. Using the theoretical minimum phase sensitivity bound -- a known result in quantum information -- and accounting for background signal coming from photon-photon scattering -- a fundamental quantum electrodynamics effect related to vacuum properties -- a set of stringent requirements for detectability is obtained. Then, a more realistic scenario is considered where gravitational effects are generated by an e-dipole pulse. In all cases considered, it is demonstrated that observing these effects presents significant challenges, even with the capabilities of current and foreseen laser infrastructures.

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F. Fillion-Gourdeau, S. MacLean. 2025-06-05. Stringent requirements for detecting light-induced gravitational effects using interferometry. https://arxiv.org/abs/2506.05534

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