Probing Quantum Dynamical Couple Correlations with Time-Domain Interferometry

TL;DR

This paper extends time domain interferometry to quantum systems, proposing a scheme to measure quantum dynamical correlations and distinguish them from classical models, demonstrated with a double well potential example.

Contribution

It introduces a quantum analysis of TDI and a scheme to access quantum correlations, advancing the technique beyond classical target systems.

Findings

Proposed a quantum scheme for TDI to measure quantum correlations.

Showed how TDI can exclude classical models of target dynamics.

Illustrated the approach with a single particle in a double well potential.

Abstract

Time domain interferometry is a promising method to characterizes spatial and temporal correlations at x-ray energies, via the so-called intermediate scattering function and the related dynamical couple correlations. However, so far, it has only been analyzed for classical target systems. Here, we provide a quantum analysis, and suggest a scheme which allows to access quantum dynamical correlations. We further show how TDI can be used to exclude classical models for the target dynamics, and illustrate our results using a single particle in a double well potential.