Journal article
Modular quantum computation in a trapped ion system
- Abstract:
- Modern computation relies crucially on modular architectures, breaking a complex algorithm into self-contained subroutines. A client can then call upon a remote server to implement parts of the computation independently via an application programming interface (API). Present APIs relay only classical information. Here we implement a quantum API that enables a client to estimate the absolute value of the trace of a server-provided unitary operation [Formula: see text]. We demonstrate that the algorithm functions correctly irrespective of what unitary [Formula: see text] the server implements or how the server specifically realizes [Formula: see text]. Our experiment involves pioneering techniques to coherently swap qubits encoded within the motional states of a trapped [Formula: see text] ion, controlled on its hyperfine state. This constitutes the first demonstration of modular computation in the quantum regime, providing a step towards scalable, parallelization of quantum computation.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 823.3KB, Terms of use)
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- Publisher copy:
- 10.1038/s41467-019-12643-2
Authors
- Publisher:
- Springer Nature
- Journal:
- Nature Communications More from this journal
- Volume:
- 10
- Issue:
- 1
- Pages:
- 4692-
- Article number:
- ARTN 4692
- Publication date:
- 2019-10-16
- Acceptance date:
- 2019-09-17
- DOI:
- EISSN:
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2041-1723
- ISSN:
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2041-1723
- Pmid:
-
31619670
- Language:
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English
- Pubs id:
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1063946
- Local pid:
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pubs:1063946
- Deposit date:
-
2020-04-23
- ARK identifier:
Terms of use
- Copyright holder:
- Zhang et al.
- Copyright date:
- 2019
- Rights statement:
- © The Author(s) 2019. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/ licenses/by/4.0/.
- Licence:
- CC Attribution (CC BY)
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