Realization of Deterministic Quantum Teleportation with Solid State Qubits

TL;DR

This paper demonstrates deterministic quantum teleportation of a qubit state in a solid-state superconducting circuit, achieving high efficiency and rate, advancing quantum communication and information processing technologies.

Contribution

First demonstration of deterministic quantum teleportation using superconducting qubits at a macroscopic scale with high efficiency.

Findings

Teleportation achieved deterministically with high fidelity.

High transfer rate of qubit states in solid-state system.

Progress towards quantum repeaters for microwave quantum communication.

Abstract

Transferring the state of an information carrier from a sender to a receiver is an essential primitive in both classical and quantum communication and information processing. In a quantum process known as teleportation the unknown state of a quantum bit can be relayed to a distant party using shared entanglement and classical information. Here we present experiments in a solid-state system based on superconducting quantum circuits demonstrating the teleportation of the state of a qubit at the macroscopic scale. In our experiments teleportation is realized deterministically with high efficiency and achieves a high rate of transferred qubit states. This constitutes a significant step towards the realization of repeaters for quantum communication at microwave frequencies and broadens the tool set for quantum information processing with superconducting circuits.