Details
| Original language | English |
|---|---|
| Article number | 060502 |
| Journal | Physical Review Letters |
| Volume | 95 |
| Issue number | 6 |
| Publication status | Published - 2 Aug 2005 |
| Externally published | Yes |
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.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical Review Letters, Vol. 95, No. 6, 060502, 02.08.2005.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Long-lived qubit memory using atomic ions
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, Piet Oliver
AU - Wineland, D. J.
PY - 2005/8/2
Y1 - 2005/8/2
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=27144448414&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.95.060502
DO - 10.1103/PhysRevLett.95.060502
M3 - Article
AN - SCOPUS:27144448414
VL - 95
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 6
M1 - 060502
ER -