Long-lived qubit memory using atomic ions

C. Langer; R. Ozeri; J. D. Jost; J. Chiaverini; B. Demarco; A. Ben-Kish; R. B. Blakestad; J. Britton; D. B. Hume; W. M. Itano; D. Leibfried; R. Reichle; T. Rosenband; T. Schaetz; P. O. Schmidt; D. J. Wineland

doi:10.1103/PhysRevLett.95.060502

Long-lived qubit memory using atomic ions

C. Langer, R. Ozeri, J. D. Jost, J. Chiaverini, B. Demarco, A. Ben-Kish, R. B. Blakestad, J. Britton, D. B. Hume, W. M. Itano, D. Leibfried, R. Reichle, T. Rosenband, T. Schaetz, P. O. Schmidt, D. J. Wineland

Research output: Contribution to journal › Article › peer-review

Abstract

We demonstrate experimentally a robust quantum memory using a magnetic-field-independent hyperfine transition in Be+9 atomic ion qubits at a magnetic field B 0.01194T. We observe that the single physical qubit memory coherence time is greater than 10 s, an improvement of approximately 5 orders of magnitude from previous experiments with Be+9. We also observe long coherence times of decoherence-free subspace logical qubits comprising two entangled physical qubits and discuss the merits of each type of qubit.

Original language	English (US)
Article number	060502
Journal	Physical review letters
Volume	95
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.95.060502
State	Published - Aug 5 2005
Externally published	Yes

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General Physics and Astronomy

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10.1103/PhysRevLett.95.060502

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Langer, C., Ozeri, R., Jost, J. D., Chiaverini, J., Demarco, B., Ben-Kish, A., Blakestad, R. B., Britton, J., Hume, D. B., Itano, W. M., Leibfried, D., Reichle, R., Rosenband, T., Schaetz, T., Schmidt, P. O., & Wineland, D. J. (2005). Long-lived qubit memory using atomic ions. Physical review letters, 95(6), Article 060502. https://doi.org/10.1103/PhysRevLett.95.060502

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AU - Langer, C.

AU - Ozeri, R.

AU - Jost, J. D.

AU - Chiaverini, J.

AU - Demarco, B.

AU - Ben-Kish, A.

AU - Blakestad, R. B.

AU - Britton, J.

AU - Hume, D. B.

AU - Itano, W. M.

AU - Leibfried, D.

AU - Reichle, R.

AU - Rosenband, T.

AU - Schaetz, T.

AU - Schmidt, P. O.

AU - Wineland, D. J.

PY - 2005/8/5

Y1 - 2005/8/5

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Long-lived qubit memory using atomic ions

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