Level of holographic noise in interferometry

TL;DR

This paper reevaluates the expected holographic noise in interferometers like GEO600, showing that previous estimates were too high due to assumptions of linear behavior, and that nonlinear effects significantly reduce the predicted noise levels.

Contribution

It provides a revised estimate of holographic noise levels by accounting for nonlinear effects, challenging earlier linear-based predictions.

Findings

Holographic noise levels are much lower than previously estimated.

Nonlinear effects like self-focusing dominate at lower energies.

Previous models overestimated noise by ignoring nonlinear phenomena.

Abstract

The level of holographic noise expected to be observed in interferometric gravitational wave detectors such as GEO600 is re-examined. It is demonstrated that earlier estimates are based on assumed linear diffractive behavior of Planck radiation. Since nonlinear effects, such as self-focusing, are expected to appear at much lower energies, the expected level of holographic noise must be reduced by many orders of magnitude.