Superconducting microresonators have been successfully utilized as detection elements for a wide variety of applications. With multiplexing factors exceeding 1000 detectors per transmission line, they are the most scalable low-temperature detector technology demonstrated to date. For high-throughput applications, fewer detectors can be coupled to a single wire but utilize a larger per-detector bandwidth. For all existing designs, fluctuations in fabrication tolerances result in a non-uniform shift in resonance frequency and sensitivity, which ultimately limits the efficiency of bandwidth utilization. Here, we present the design, implementation, and initial characterization of a superconducting microresonator readout integrating two tunable inductances per detector. We demonstrate that these tuning elements provide independent control of both the detector frequency and sensitivity, allowing us to maximize the transmission line bandwidth utilization. Finally, we discuss the integration of these detectors in a multilayer fabrication stack for high-speed readout of the D-Wave quantum processor, highlighting the use of control and routing circuitry composed of single-flux-quantum loops to minimize the number of control wires at the lowest temperature stage.
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7 January 2016
Research Article|
January 07 2016
A frequency and sensitivity tunable microresonator array for high-speed quantum processor readout
J. D. Whittaker
;
J. D. Whittaker
a)
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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L. J. Swenson;
L. J. Swenson
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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M. H. Volkmann;
M. H. Volkmann
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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P. Spear;
P. Spear
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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F. Altomare;
F. Altomare
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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A. J. Berkley
;
A. J. Berkley
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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B. Bumble;
B. Bumble
2Jet Propulsion Laboratory,
California Institute of Technology
, Pasadena, California 91109, USA
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P. Bunyk;
P. Bunyk
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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P. K. Day;
P. K. Day
2Jet Propulsion Laboratory,
California Institute of Technology
, Pasadena, California 91109, USA
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B. H. Eom;
B. H. Eom
2Jet Propulsion Laboratory,
California Institute of Technology
, Pasadena, California 91109, USA
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R. Harris;
R. Harris
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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J. P. Hilton;
J. P. Hilton
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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E. Hoskinson;
E. Hoskinson
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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M. W. Johnson;
M. W. Johnson
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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A. Kleinsasser;
A. Kleinsasser
2Jet Propulsion Laboratory,
California Institute of Technology
, Pasadena, California 91109, USA
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E. Ladizinsky;
E. Ladizinsky
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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T. Lanting;
T. Lanting
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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T. Oh;
T. Oh
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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I. Perminov;
I. Perminov
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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E. Tolkacheva;
E. Tolkacheva
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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J. Yao
J. Yao
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
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J. D. Whittaker
1,a)
L. J. Swenson
1
M. H. Volkmann
1
P. Spear
1
F. Altomare
1
A. J. Berkley
1
B. Bumble
2
P. Bunyk
1
P. K. Day
2
B. H. Eom
2
R. Harris
1
J. P. Hilton
1
E. Hoskinson
1
M. W. Johnson
1
A. Kleinsasser
2
E. Ladizinsky
1
T. Lanting
1
T. Oh
1
I. Perminov
1
E. Tolkacheva
1
J. Yao
1
1
D-Wave Systems, Inc.
, Burnaby, British Columbia V5G 4M9, Canada
2Jet Propulsion Laboratory,
California Institute of Technology
, Pasadena, California 91109, USA
a)
E-mail: [email protected]
J. Appl. Phys. 119, 014506 (2016)
Article history
Received:
September 15 2015
Accepted:
December 16 2015
Citation
J. D. Whittaker, L. J. Swenson, M. H. Volkmann, P. Spear, F. Altomare, A. J. Berkley, B. Bumble, P. Bunyk, P. K. Day, B. H. Eom, R. Harris, J. P. Hilton, E. Hoskinson, M. W. Johnson, A. Kleinsasser, E. Ladizinsky, T. Lanting, T. Oh, I. Perminov, E. Tolkacheva, J. Yao; A frequency and sensitivity tunable microresonator array for high-speed quantum processor readout. J. Appl. Phys. 7 January 2016; 119 (1): 014506. https://doi.org/10.1063/1.4939161
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