Details

Autor(en) / Beteiligte

• Nölleke, Christian
• Neuzner, Andreas
• Reiserer, Andreas
• Hahn, Carolin
• Rempe, Gerhard
• Ritter, Stephan

Titel

Efficient teleportation between remote single-atom quantum memories

Ist Teil von

• Physical review letters, 2013-04, Vol.110 (14), p.140403-140403, Article 140403

Ort / Verlag

United States

Erscheinungsjahr

2013

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• 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.