Quantum Teleportation in a Solid State System

TL;DR

This paper proposes a solid-state system using coupled quantum dots to demonstrate quantum teleportation, utilizing optical control to generate entangled states and simple unitary operations.

Contribution

It introduces a practical setup for quantum teleportation in solid-state systems with explicit control protocols and minimal unitary operations.

Findings

Successful generation of Bell and GHZ states in quantum dots

Implementation of quantum teleportation protocol with optical control

Explicit laser pulse sequences for entanglement and unitary gates

Abstract

We propose a practical solid-state system capable of demonstrating quantum teleportation. The set-up exploits recent advances in the optical control of excitons in coupled quantum dots, in order to produce maximally-entangled Bell and Greenberger-Horne-Zeilinger (GHZ) states. Only two unitary transformations are then required: a quantum Controlled-Not gate and a Hadamard gate. The laser pulses necessary to generate the maximally-entangled states, and the corresponding unitary transformations, are given explicitly.