Entanglement based tomography to probe new macroscopic forces

TL;DR

This paper proposes an entanglement-based tomography protocol using charged particle interferometers to detect and constrain hypothetical macroscopic forces and particles beyond known physics, such as Yukawa interactions and axion-like particles.

Contribution

It introduces a novel method to probe new macroscopic forces via entanglement phase evolution in charged particle interferometers, extending the search for physics beyond the Standard Model.

Findings

Can constrain Yukawa couplings to α ≥ 10^{-35} for r ≥ 10^{-6}m

Can constrain gravitational Yukawa couplings to α_g ≥ 10^{-8} for r ≥ 10^{-6}m

Can set bounds on axion-like particle mass and coupling

Abstract

Quantum entanglement provides a novel way to test short distance physics in the non-relativistic regime. We will provide a protocol to {\it potentially} test new physics by bringing two charged massive particle interferometers adjacent to each other. Being charged, the two superpositions will be entangled via electromagnetic interactions mediated by the photons, including the Coulomb and the Casimir-Polder potential. We will bring a method of {\it entanglement based tomography} to seek time evolution of very small entanglement phases to probe new physical effects mediated by {\it hitherto unknown macroscopic force} which might be responsible for entangling the two charged superpositions modelled by the Yukawa type potential. We will be able to constrain the Yukawa couplings $\alpha \geq 10^{-35}$ for $r\geq 10^{-6}$m for new physics occurring in the electromagnetic sector, and in the gravitational potential $\alpha_g \geq 10^{-8}$ for $r \geq 10^{-6}$m. Furthermore, our protocol can also constrain the axion like particle mass and coupling, which is complimentary to the existing experimental bounds.