Efficient Teleportation between Remote Single-Atom Quantum Memories

Efficient Teleportation between Remote Single-Atom Quantum Memories

We demonstrate teleportation of quantum bits between two single atoms in distant laboratories. Using a time-resolved photonic Bell-state measurement, we achieve a teleportation fidelity of (88.0+/-1.5)%, largely determined by our entanglement fidelity. The low photon collection efficiency in free sp...

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Veröffentlicht in:arXiv.org 2013-04
Hauptverfasser: Nölleke, Christian, Neuzner, Andreas, Reiserer, Andreas, Hahn, Carolin, Rempe, Gerhard, Ritter, Stephan
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Sprache:eng
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Photonics
Physics - Quantum Physics
Quantum entanglement
Quantum teleportation
Qubits (quantum computing)
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Neuzner, Andreas
Reiserer, Andreas
Hahn, Carolin
Rempe, Gerhard
Ritter, Stephan
description We demonstrate teleportation of quantum bits between two single atoms in distant laboratories. Using a time-resolved photonic Bell-state measurement, we achieve a teleportation fidelity of (88.0+/-1.5)%, largely determined by our entanglement fidelity. The low photon collection efficiency in free space is overcome by trapping each atom in an optical cavity. The resulting success probability of 0.1% is almost 5 orders of magnitude larger than in previous experiments with remote material qubits. It is mainly limited by photon propagation and detection losses and can be enhanced with a cavity-based deterministic Bell-state measurement.
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subjects Photonics
Physics - Quantum Physics
Quantum entanglement
Quantum teleportation
Qubits (quantum computing)
title Efficient Teleportation between Remote Single-Atom Quantum Memories
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