Demonstration of local teleportation using classical entanglement

TL;DR

This paper demonstrates a classical analog of quantum teleportation using entanglement between optical degrees of freedom, showing that teleportation concepts are not exclusive to quantum systems and can be realized classically.

Contribution

It introduces a classical entanglement-based teleportation protocol, expanding the understanding of teleportation beyond quantum mechanics and suggesting new hybrid communication methods.

Findings

Classical entanglement can be used to implement teleportation protocols.

The protocol operates independently of quantum nonlocality.

Potential applications in hybrid classical-quantum communication systems.

Abstract

Teleportation is the most widely discussed application of the basic principles of quantum mechanics. Fundamentally, this process describes the transmission of information, which involves transport of neither matter nor energy. The implicit assumption, however, is that this scheme is of inherently nonlocal nature, and therefore exclusive to quantum systems. Here, we show that the concept can be readily generalized beyond the quantum realm. We present an optical implementation of the teleportation protocol solely based on classical entanglement between spatial and modal degrees of freedom, entirely independent of nonlocality. Our findings could enable novel methods for distributing information between different transmission channels and may provide the means to leverage the advantages of both quantum and classical systems to create a robust hybrid communication infrastructure.