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The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.

Creation of a six-atom ‘Schrödinger cat’ state

Leibfried, D., Knill, E., Seidelin, S., Britton, J., Blakestad, R. B., Chiaverini, J., Hume, D. B., Itano, W. M., Jost, J. D., Langer, C., Ozeri, R., Reichle, R., Wineland, D. J.·2005·Nature
DOI 10.1038/nature04251
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Abstract

Among the classes of highly entangled states of multiple quantum systems, the so-called 'Schrödinger cat' states are particularly useful. Cat states are equal superpositions of two maximally different quantum states. They are a fundamental resource in fault-tolerant quantum computing and quantum communication, where they can enable protocols such as open-destination teleportation and secret sharing. They play a role in fundamental tests of quantum mechanics and enable improved signal-to-noise ratios in interferometry. Cat states are very sensitive to decoherence, and as a result their preparation is challenging and can serve as a demonstration of good quantum control. Here we report the creation of cat states of up to six atomic qubits. Each qubit's state space is defined by two hyperfine ground states of a beryllium ion; the cat state corresponds to an entangled equal superposition of all the atoms in one hyperfine state and all atoms in the other hyperfine state. In our experiments, the cat states are prepared in a three-step process, irrespective of the number of entangled atoms. Together with entangled states of a different class created in Innsbruck, this work represents the current state-of-the-art for large entangled states in any qubit system.

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Crossref · 10.1038/nature04251

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  • To the authors' knowledge, this constitutes the highest precision per-particle reported so far.

    “To our knowledge, this constitutes the highest precision per-particle reported so far47918.”

    From Photonic polarization gears for ultra-sensitive angular measurements (2013) · cites this paper as [7]

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Metadata

Authors
Leibfried, D., Knill, E., Seidelin, S., Britton, J., Blakestad, R. B., Chiaverini, J., Hume, D. B., Itano, W. M., Jost, J. D., Langer, C., Ozeri, R., Reichle, R., & Wineland, D. J.
Venue
Nature
Publisher
Springer Science and Business Media LLC
Published
2005-12
Volume
438
Issue
7068
Pages
639-642
ISSN
  • 0028-0836
  • 1476-4687
DOI
10.1038/nature04251
Cited by
805
References
6
Language
en
Licence
www.springer.com/tdm (tdm)

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