تقرير
The high-coherence fluxonium qubit
| العنوان: | The high-coherence fluxonium qubit |
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| المؤلفون: | Nguyen, Long B., Lin, Yen-Hsiang, Somoroff, Aaron, Mencia, Raymond, Grabon, Nicholas, Manucharyan, Vladimir E. |
| المصدر: | Phys. Rev. X 9, 041041 (2019) |
| سنة النشر: | 2018 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Condensed Matter - Superconductivity |
| الوصف: | We report superconducting fluxonium qubits with coherence times largely limited by energy relaxation and reproducibly satisfying T2 > 100 microseconds (T2 > 300 microseconds in one device). Moreover, given the state of the art values of the surface loss tangent and the 1/f flux noise amplitude, coherence can be further improved beyond 1 millisecond. Our results violate a common viewpoint that the number of Josephson junctions in a superconducting circuit -- over 100 here -- must be minimized for best qubit coherence. We outline how the unique to fluxonium combination of long coherence time and large anharmonicity can benefit both gate-based and adiabatic quantum computing. Comment: 12 pages, 4 figures, 1 table |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevX.9.041041 |
| URL الوصول: | http://arxiv.org/abs/1810.11006 |
| رقم الأكسشن: | edsarx.1810.11006 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevX.9.041041 |
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