An Introduction to Quantum Teleportation

TL;DR

Quantum teleportation is a fundamental quantum communication protocol confirmed by recent experiments, enabling the transfer of quantum states of photons and nuclear spins through entanglement and entanglement swapping.

Contribution

This paper introduces the principles of quantum teleportation and discusses physical realizations for optical and atomic states, highlighting recent experimental confirmations.

Findings

Quantum teleportation is experimentally confirmed for photons and nuclear spins.

Entanglement swapping is a key process in quantum teleportation.

Physical realizations include optical and atomic state teleportation.

Abstract

Recent experiments confirm that quantum teleportation is possible at least for states of photons and nuclear spins. The quantum teleportation is not only a curious effect but a fundamental protocol of quantum communication and quantum computing. The principles of the quantum teleportation and the entanglement swapping are explained, and physical realizations of teleportation of optical and atomic states are discussed.