# Reconstruction of joint photon-number distributions of twin beams incorporating spatial noise reduction

## TL;DR

This paper introduces a novel method for reconstructing joint photon-number distributions of twin beams that incorporates spatial noise reduction, demonstrating superior performance over traditional maximum-likelihood approaches through experimental implementation.

## Contribution

The paper presents a new reconstruction method that integrates spatial noise reduction, improving accuracy in joint photon-number distribution estimation for twin beams.

## Key findings

- The method outperforms standard maximum-likelihood reconstruction.
- Experimental results confirm enhanced noise suppression.
- Improved accuracy in photon-number distribution reconstruction.

## Abstract

A method for reconstructing joint photon-number distributions of twin beams from the experimental photocount histograms is suggested and experimentally implemented. Contrary to the standard reconstruction methods, it incorporates spatial noise reduction based on spatial pairing of photons. Superior performance of the method above the usual one for the maximum-likelihood approach is demonstrated.