Open Access
Coherent Josephson qubit suitable for scalable quantum integrated circuits.
R. Barends
1
,
J. Kelly
1
,
A. Megrant
1
,
Anthony Megrant
1
,
D. Sank
1
,
Daniel Sank
1
,
E. Jeffrey
1
,
Y. Chen
1
,
Yi Chen
1
,
Y. Yin
1
,
Y. –C. Yin Yin
1
,
B. Chiaro
1
,
J. Mutus
1
,
C Neill
1
,
Charles Neill
1
,
P O’Malley
1
,
Patrick M. O’Malley
1
,
P. Roushan
1
,
Pedram Roushan
1
,
J. Wenner
1
,
T.C. White
1
,
T. P. White
1
,
A N Cleland
1
,
A. Cleland
1
,
John M. Martinis
1
Тип публикации: Journal Article
Дата публикации: 2013-08-22
scimago Q1
wos Q1
БС1
SJR: 2.856
CiteScore: 15.6
Impact factor: 9.0
ISSN: 00319007, 10797114
PubMed ID:
24010421
General Physics and Astronomy
Краткое описание
We demonstrate a planar, tunable superconducting qubit with energy relaxation times up to 44 μs. This is achieved by using a geometry designed to both minimize radiative loss and reduce coupling to materials-related defects. At these levels of coherence, we find a fine structure in the qubit energy lifetime as a function of frequency, indicating the presence of a sparse population of incoherent, weakly coupled two-level defects. We elucidate this defect physics by experimentally varying the geometry and by a model analysis. Our "Xmon" qubit combines facile fabrication, straightforward connectivity, fast control, and long coherence, opening a viable route to constructing a chip-based quantum computer.
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ГОСТ
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Barends R. et al. Coherent Josephson qubit suitable for scalable quantum integrated circuits. // Physical Review Letters. 2013. Vol. 111. No. 8. 080502
ГОСТ со всеми авторами (до 50)
Скопировать
Barends R., Kelly J., Megrant A., Megrant A., Sank D., Sank D., Jeffrey E., Chen Y., Chen Y., Yin Y., Yin Y. –. Y., Chiaro B., Mutus J., Neill C., Neill C., O’Malley P., O’Malley P. M., Roushan P., Roushan P., Wenner J., White T., White T. P., Cleland A. N., Cleland A., Martinis J. M. Coherent Josephson qubit suitable for scalable quantum integrated circuits. // Physical Review Letters. 2013. Vol. 111. No. 8. 080502
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TY - JOUR
DO - 10.1103/PhysRevLett.111.080502
UR - https://doi.org/10.1103/PhysRevLett.111.080502
TI - Coherent Josephson qubit suitable for scalable quantum integrated circuits.
T2 - Physical Review Letters
AU - Barends, R.
AU - Kelly, J.
AU - Megrant, A.
AU - Megrant, Anthony
AU - Sank, D.
AU - Sank, Daniel
AU - Jeffrey, E.
AU - Chen, Y.
AU - Chen, Yi
AU - Yin, Y.
AU - Yin, Y. –C. Yin
AU - Chiaro, B.
AU - Mutus, J.
AU - Neill, C
AU - Neill, Charles
AU - O’Malley, P
AU - O’Malley, Patrick M.
AU - Roushan, P.
AU - Roushan, Pedram
AU - Wenner, J.
AU - White, T.C.
AU - White, T. P.
AU - Cleland, A N
AU - Cleland, A.
AU - Martinis, John M.
PY - 2013
DA - 2013/08/22
PB - American Physical Society (APS)
IS - 8
VL - 111
PMID - 24010421
SN - 0031-9007
SN - 1079-7114
ER -
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BibTex (до 50 авторов)
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@article{2013_Barends,
author = {R. Barends and J. Kelly and A. Megrant and Anthony Megrant and D. Sank and Daniel Sank and E. Jeffrey and Y. Chen and Yi Chen and Y. Yin and Y. –C. Yin Yin and B. Chiaro and J. Mutus and C Neill and Charles Neill and P O’Malley and Patrick M. O’Malley and P. Roushan and Pedram Roushan and J. Wenner and T.C. White and T. P. White and A N Cleland and A. Cleland and John M. Martinis},
title = {Coherent Josephson qubit suitable for scalable quantum integrated circuits.},
journal = {Physical Review Letters},
year = {2013},
volume = {111},
publisher = {American Physical Society (APS)},
month = {aug},
url = {https://doi.org/10.1103/PhysRevLett.111.080502},
number = {8},
pages = {080502},
doi = {10.1103/PhysRevLett.111.080502}
}
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