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arXiv · 0705.1256

Memory-built-in quantum teleportation with photonic and atomic qubits

Yu-Ao Chen·Shuai Chen·Zhen-Sheng Yuan·Bo Zhao·Chih-Sung Chuu·Joerg Schmiedmayer·Jian-Wei Pan
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Abstract

The combination of quantum teleportation and quantum memory of photonic qubits is essential for future implementations of large-scale quantum communication and measurement-based quantum computation. Both steps have been achieved separately in many proof-of-principle experiments, but the demonstration of memory-built-in teleportation of photonic qubits remains an experimental challenge. Here, we demonstrate teleportation between photonic (flying) and atomic (stationary) qubits. In our experiment, an unknown polarization state of a single photon is teleported over 7 m onto a remote atomic qubit that also serves as a quantum memory. The teleported state can be stored and successfully read out for up to 8 micro-second. Besides being of fundamental interest, teleportation between photonic and atomic qubits with the direct inclusion of a readable quantum memory represents a step towards an efficient and scalable quantum network.

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Yu-Ao Chen, Shuai Chen, Zhen-Sheng Yuan, Bo Zhao, Chih-Sung Chuu, Joerg Schmiedmayer, Jian-Wei Pan. 2008-01-21. Memory-built-in quantum teleportation with photonic and atomic qubits. https://doi.org/10.1038/nphys832

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