Deterministic quantum teleportation of atomic qubits
Abstract
Quantum teleportation provides a means to transport quantum information efficiently from one location to another, without the physical transfer of the associated quantum-information carrier. This is achieved by using the non-local correlations of previously distributed, entangled quantum bits (qubits). Teleportation is expected to play an integral role in quantum communication and quantum computation. Previous experimental demonstrations have been implemented with optical systems that used both discrete and continuous variables, and with liquid-state nuclear magnetic resonance. Here we report unconditional teleportation of massive particle qubits using atomic (9Be+) ions confined in a segmented ion trap, which aids individual qubit addressing. We achieve an average fidelity of 78 per cent, which exceeds the fidelity of any protocol that does not use entanglement. This demonstration is also important because it incorporates most of the techniques necessary for scalable quantum information processing in an ion-trap system.
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Quantum teleportation using nuclear magnetic resonance or trapped atoms has the advantage that the input quantum state can be teleported with 100% efficiency, but it is difficult if not impossible to implement over long distances.
“Quantum teleportation using nuclear magnetic resonance (Nielsen et al., 1998) or trapped atoms (Riebe et al., 2004;Barrett et al., 2004) has an obvious advantage in that the input quantum state can be teleported with an efficiency of 100%.Yet, it is difficult (if not impossible) to implement it over long distances.”
From Multiphoton entanglement and interferometry (2012) · cites this paper as Barrett et al., 2004
Cites
<i>Quantum Computation and Quantum Information</i>
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Self-citationCooling the Collective Motion of Trapped Ions to Initialize a Quantum Register
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- Authors
- Barrett, M. D., Chiaverini, J., Schaetz, T., Britton, J., Itano, W. M., Jost, J. D., Knill, E., Langer, C., Leibfried, D., Ozeri, R., & Wineland, D. J.
- Affiliations
- National Institute of Standards and Technology (US)
- Corresponding author
- Wineland, D. J.
- ORCID
- Venue
- Nature
- Published
- 2004-06
- Volume
- 429
- Issue
- 6993
- Pages
- 737-739
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W1969546033
- Cited by
- 975
- References
- 8
- Citations by year
- 2026: 17 · 2025: 29 · 2024: 36 · 2023: 60 · 2022: 34 · 2021: 49 · 2020: 31 · 2019: 26 · 2018: 17 · 2017: 25 · 2016: 35 · 2015: 26 · 2014: 38 · 2013: 39 · 2012: 22
- FWCI
- 88.60
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature (publishedVersion)
- PubMed (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- Funders
- Deutsche Forschungsgemeinschaft
- Agricultural Research Development Agency
- National Institute of Standards and Technology
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Cold Atom Physics and Bose-Einstein Condensates
- Keywords
- quantum teleportation, atomic qubits, beryllium ions, ion trap, entanglement, quantum information transfer, teleportation fidelity, scalable quantum information processing
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