Spatially entangled Airy photons

TL;DR

This paper demonstrates the generation of spatially entangled Airy photons that retain classical Airy beam properties like acceleration and diffraction reduction, while also exhibiting quantum anti-correlations, opening new avenues in quantum optics.

Contribution

It introduces a method to produce entangled photons in Airy states using spontaneous parametric down conversion pumped by classical Airy beams, extending Airy beam concepts to quantum regimes.

Findings

Entangled Airy photons preserve classical Airy properties

Demonstration of non-classical anti-correlations

Potential for quantum applications with Airy beams

Abstract

Over the past decade, Airy beams have been the subject of extensive research, leading to new physical insights and various applications. In this letter, we extend the concept of Airy beams to the quantum domain. We generate entangled photons in a superposition of two-photon Airy states via spontaneous parametric down conversion, pumped by a classical Airy beam. We show that the entangled Airy photons preserve the intriguing properties of classical Airy beams, such as free acceleration and reduced diffraction, while exhibiting non-classical anti-correlations.