Publication Date:
2014-08-02
Description:
Realizing robust quantum information transfer between long-lived qubit registers is a key challenge for quantum information science and technology. Here we demonstrate unconditional teleportation of arbitrary quantum states between diamond spin qubits separated by 3 meters. We prepare the teleporter through photon-mediated heralded entanglement between two distant electron spins and subsequently encode the source qubit in a single nuclear spin. By realizing a fully deterministic Bell-state measurement combined with real-time feed-forward, quantum teleportation is achieved upon each attempt with an average state fidelity exceeding the classical limit. These results establish diamond spin qubits as a prime candidate for the realization of quantum networks for quantum communication and network-based quantum computing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pfaff, W -- Hensen, B J -- Bernien, H -- van Dam, S B -- Blok, M S -- Taminiau, T H -- Tiggelman, M J -- Schouten, R N -- Markham, M -- Twitchen, D J -- Hanson, R -- New York, N.Y. -- Science. 2014 Aug 1;345(6196):532-5. doi: 10.1126/science.1253512. Epub 2014 May 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Kavli Institute of Nanoscience Delft, Delft University of Technology, Post Office Box 5046, 2600 GA Delft, Netherlands. ; Element Six, Ltd., Kings Ride Park, Ascot, Berkshire SL5 8BP, UK. ; Kavli Institute of Nanoscience Delft, Delft University of Technology, Post Office Box 5046, 2600 GA Delft, Netherlands. r.hanson@tudelft.nl.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25082696" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
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Chemistry and Pharmacology
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Computer Science
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Medicine
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Natural Sciences in General
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Physics
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