Related Experiment Video
Updated: Feb 14, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Continuous-Variable Triple-Photon States Quantum Entanglement
E A Rojas González1,2, A Borne3,4, B Boulanger4
1Centre de Nanosciences et de Nanotechnologies CNRS/Université Paris-Saclay, 91460 Marcoussis, France.
Abstract:
We investigate the quantum entanglement of the three modes associated with the three-photon states obtained by triple-photon generation in a phase-matched third-order nonlinear optical interaction. Although the second-order processes have been extensively dealt with, there is no direct analogy between the second and third-order mechanisms. We show, for example, the absence of quantum entanglement between the quadratures of the three modes in the case of spontaneous parametric triple-photon generation. However, we show robust, seeding-dependent, genuine triple-photon entanglement in the fully seeded case.
Related Concept Videos
Quantum Numbers
The Quantum-Mechanical Model of an Atom
Variability: Analysis
The range is a simple measure of variability, indicating the difference between the highest and...
Random Variables
Uppercase letters such as X or Y denote a random variable. Lowercase letters like x or y denote the value of a random variable. If X is a random variable, then X is written in words, and x is given as a number.
For example, let X = the...
Scalar and Vector Triple Products
The scalar triple product is the dot product of a vector with the cross product of two vectors....
Graphs of Equations in Two Variables

