Optical states with higher stellar rank

TL;DR

This paper explores the minimal detector efficiency and squeezing quality needed to experimentally realize certifiable quantum non-Gaussian states with three to five photons, advancing quantum information processing capabilities.

Contribution

It identifies the minimal experimental requirements for generating certifiable quantum non-Gaussian states with higher photon numbers.

Findings

Determines the minimal quantum efficiency of detectors needed.

Establishes the quality thresholds for squeezing operations.

Provides guidelines for experimental realization of non-Gaussian states.

Abstract

Quantum non-Gaussian states of traveling light fields are crucial components of quantum information processing protocols; however, their preparation is experimentally challenging. In this paper, we discuss the minimal requirements imposed on the quantum efficiency of photon number resolving detectors and the quality of the squeezing operation in an experimental realization of certifiable quantum non-Gaussian states of individual photonic states with three, four, and five photons.