تقرير
High-fidelity preparation, gates, memory and readout of a trapped-ion quantum bit
| العنوان: | High-fidelity preparation, gates, memory and readout of a trapped-ion quantum bit |
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| المؤلفون: | Harty, T. P., Allcock, D. T. C., Ballance, C. J., Guidoni, L., Janacek, H. A., Linke, N. M., Stacey, D. N., Lucas, D. M. |
| المصدر: | Phys. Rev. Lett. 113, 220501 (2014) |
| سنة النشر: | 2014 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | We implement all single-qubit operations with fidelities significantly above the minimum threshold required for fault-tolerant quantum computing, using a trapped-ion qubit stored in hyperfine "atomic clock" states of $^{43}$Ca$^+$. We measure a combined qubit state preparation and single-shot readout fidelity of 99.93%, a memory coherence time of $T^*_2=50$ seconds, and an average single-qubit gate fidelity of 99.9999%. These results are achieved in a room-temperature microfabricated surface trap, without the use of magnetic field shielding or dynamic decoupling techniques to overcome technical noise. Comment: Supplementary Information included. 6 nines, 7 figures, 8 pages |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.113.220501 |
| URL الوصول: | http://arxiv.org/abs/1403.1524 |
| رقم الأكسشن: | edsarx.1403.1524 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.113.220501 |
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