Amplified transduction of Planck-scale effects using quantum optics

TL;DR

This paper proposes an enhanced optomechanical scheme to improve the experimental testing of quantum gravity effects, specifically the generalized uncertainty principle, by increasing sensitivity and mitigating noise.

Contribution

It introduces a novel pulsed optomechanical protocol to amplify the detection of Planck-scale effects and addresses practical noise mitigation strategies.

Findings

Enhanced sensitivity to quantum gravity effects using extended pulsed interactions

Analysis of optical phase noise and loss impacts on measurements

Strategies for noise mitigation in high-precision optomechanical experiments

Abstract

The unification of quantum mechanics and gravity remains as one of the primary challenges of present-day physics. Quantum-gravity-inspired phenomenological models offer a window to explore potential aspects of quantum gravity including qualitatively new behaviour that can be experimentally tested. One such phenomenological model is the generalized uncertainty principle (GUP), which predicts a modified Heisenberg uncertainty relation and a deformed canonical commutator. It was recently shown that optomechanical systems offer significant promise to put stringent experimental bounds on such models. In this paper, we introduce a scheme to increase the sensitivity of these experiments with an extended sequence of pulsed optomechanical interactions. We also analyze the effects of optical phase noise and optical loss and present a strategy to mitigate such deleterious effects.