Quantum teleportation in the spin-orbit variables of photon pairs

TL;DR

This paper presents a practical quantum teleportation protocol that transfers quantum states from polarization to orbital angular momentum in photon pairs, utilizing existing quantum optics technology.

Contribution

It introduces a novel teleportation scheme connecting polarization and orbital angular momentum, enabling complete Bell-state detection with minimal resources.

Findings

Achieves near-perfect teleportation between discrete and continuous variables.

Utilizes joint detection of polarization and angular momentum parity.

Requires only currently available quantum optics experimental resources.

Abstract

We propose a polarization to orbital angular momentum teleportation scheme using entangled photon pairs generated by spontaneous parametric down conversion. By making a joint detection of the polarization and angular momentum parity of a single photon, we are able to detect all the Bell-states and perform, in principle, perfect teleportation from a discrete to a continuous system using minimal resources. The proposed protocol implementation demands experimental resources that are currently available in quantum optics laboratories.