Open Access
Observation of High Coherence in Josephson Junction Qubits Measured in a Three-Dimensional Circuit QED Architecture
Hanhee Paik
1
,
D. I Schuster
1, 2
,
David J. Schuster
1, 2
,
Lev S. Bishop
1, 3
,
G Kirchmair
1
,
Gerhard Kirchmair
1
,
G Catelani
1
,
G. Catelani
1
,
A. P. Sears
1
,
B. R. Johnson
1, 4
,
Brett C. Johnson
1, 4
,
M J Reagor
1
,
Matthew J. Reagor
1
,
L. Frunzio
1
,
L Frunzio
1
,
L. I. Glazman
1
,
L.I. Glazman
1
,
S. M. GIRVIN
1
,
M. H. Devoret
1
,
M.H. Devoret
1
,
R. J. Schoelkopf
1
4
Raytheon BBN Technologies, Cambridge, Massachusetts 02138, USA
|
Publication type: Journal Article
Publication date: 2011-12-05
scimago Q1
wos Q1
SJR: 2.856
CiteScore: 15.6
Impact factor: 9.0
ISSN: 00319007, 10797114
PubMed ID:
22242979
General Physics and Astronomy
Abstract
Superconducting quantum circuits based on Josephson junctions have made rapid progress in demonstrating quantum behavior and scalability. However, the future prospects ultimately depend upon the intrinsic coherence of Josephson junctions, and whether superconducting qubits can be adequately isolated from their environment. We introduce a new architecture for superconducting quantum circuits employing a three-dimensional resonator that suppresses qubit decoherence while maintaining sufficient coupling to the control signal. With the new architecture, we demonstrate that Josephson junction qubits are highly coherent, with T2 ∼ 10 to 20 μs without the use of spin echo, and highly stable, showing no evidence for 1/f critical current noise. These results suggest that the overall quality of Josephson junctions in these qubits will allow error rates of a few 10(-4), approaching the error correction threshold.
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Paik H. et al. Observation of High Coherence in Josephson Junction Qubits Measured in a Three-Dimensional Circuit QED Architecture // Physical Review Letters. 2011. Vol. 107. No. 24. 240501
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Paik H., Schuster D. I., Schuster D. J., Bishop L. S., Kirchmair G., Kirchmair G., Catelani G., Catelani G., Sears A., Johnson B. R., Johnson B. C., Reagor M. J., Reagor M. J., Frunzio L., Frunzio L., Glazman L. I., Glazman L., GIRVIN S. M., Devoret M., Devoret M., Schoelkopf R. Observation of High Coherence in Josephson Junction Qubits Measured in a Three-Dimensional Circuit QED Architecture // Physical Review Letters. 2011. Vol. 107. No. 24. 240501
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TY - JOUR
DO - 10.1103/PhysRevLett.107.240501
UR - https://doi.org/10.1103/PhysRevLett.107.240501
TI - Observation of High Coherence in Josephson Junction Qubits Measured in a Three-Dimensional Circuit QED Architecture
T2 - Physical Review Letters
AU - Paik, Hanhee
AU - Schuster, D. I
AU - Schuster, David J.
AU - Bishop, Lev S.
AU - Kirchmair, G
AU - Kirchmair, Gerhard
AU - Catelani, G
AU - Catelani, G.
AU - Sears, A. P.
AU - Johnson, B. R.
AU - Johnson, Brett C.
AU - Reagor, M J
AU - Reagor, Matthew J.
AU - Frunzio, L.
AU - Frunzio, L
AU - Glazman, L. I.
AU - Glazman, L.I.
AU - GIRVIN, S. M.
AU - Devoret, M. H.
AU - Devoret, M.H.
AU - Schoelkopf, R. J.
PY - 2011
DA - 2011/12/05
PB - American Physical Society (APS)
IS - 24
VL - 107
PMID - 22242979
SN - 0031-9007
SN - 1079-7114
ER -
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@article{2011_Paik,
author = {Hanhee Paik and D. I Schuster and David J. Schuster and Lev S. Bishop and G Kirchmair and Gerhard Kirchmair and G Catelani and G. Catelani and A. P. Sears and B. R. Johnson and Brett C. Johnson and M J Reagor and Matthew J. Reagor and L. Frunzio and L Frunzio and L. I. Glazman and L.I. Glazman and S. M. GIRVIN and M. H. Devoret and M.H. Devoret and R. J. Schoelkopf},
title = {Observation of High Coherence in Josephson Junction Qubits Measured in a Three-Dimensional Circuit QED Architecture},
journal = {Physical Review Letters},
year = {2011},
volume = {107},
publisher = {American Physical Society (APS)},
month = {dec},
url = {https://doi.org/10.1103/PhysRevLett.107.240501},
number = {24},
pages = {240501},
doi = {10.1103/PhysRevLett.107.240501}
}
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