Probing the limits of quantum theory with quantum information at subnuclear scales

TL;DR

This paper introduces a new theoretical framework for quantum data tests that can explore potential deviations from standard quantum mechanics at subnuclear scales, emphasizing experimental probing of strong nuclear interactions.

Contribution

It proposes a novel framework for testing quantum theory's limits, accommodating post-quantum models, and suggests experimental methods focusing on coherent control at subnuclear scales.

Findings

Framework can incorporate models with modified wave dynamics

Enables probing correlations beyond entanglement

Suggests experimental focus on individual particle control

Abstract

Modern quantum engineering techniques enabled successful foundational tests of quantum mechanics. Yet, the universal validity of quantum postulates is an open question. Here we propose a new theoretical framework of Q-data tests, which recognises the established validity of quantum theory, but allows for more general -- 'post-quantum' -- scenarios in certain physical regimes. It can accommodate a large class of models with modified quantum wave dynamics, correlations beyond entanglement or general probabilistic postulates. We discuss its experimental implementation suited to probe the nature of strong nuclear interactions. In contrast to the present accelerator experiments, it shifts the focus from high-luminosity beam physics to individual particle coherent control.