Experimental Quantum Imaging exploiting multi-mode spatial correlation of twin beams

TL;DR

This paper reports on an experimental quantum imaging technique that uses multi-mode spatial correlations of twin beams to achieve higher signal-to-noise ratios than classical methods, advancing quantum imaging applications.

Contribution

It demonstrates the practical realization of quantum imaging exploiting spatial correlations of twin beams, showing improved signal-to-noise ratio over classical approaches.

Findings

Achieved larger signal-to-noise ratio compared to classical imaging.

Demonstrated feasibility of quantum imaging with twin beams.

Potential for practical applications in low-light imaging.

Abstract

Properties of quantum states have disclosed new and revolutionary technologies, ranging from quantum information to quantum imaging. This last field is addressed to overcome limits of classical imaging by exploiting specific properties of quantum states of light. One of the most interesting proposed scheme exploits spatial quantum correlations between twin beams for realizing sub-shot-noise imaging of the weak absorbing objects, leading ideally to a noise-free imaging. Here we discuss in detail the experimental realization of this scheme, showing its capability to reach a larger signal to noise ratio with respect to classical imaging methods and, therefore, its interest for future practical applications.