Broadband sample holder for microwave spectroscopy of superconducting qubits

Journal Article · Wed Oct 15 00:00:00 EDT 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4896830· OSTI ID:22305903

Averkin, A. S.; Karpov, A.; Glushkov, E.; Abramov, N. ^[1]; Shulga, K. ^[1]; Huebner, U. ^[2]; Il'ichev, E. ^[3]; Ustinov, A. V. ^[1]

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1. National University of Science and Technology (MISIS), Leninskiy prosp. 4, Moscow, 119049 (Russian Federation)
2. Leibniz Institute of Photonic Technology (IPHT), PO Box 100239, D-07702 Jena (Germany)
3. Russian Quantum Center (RQC), 100 Novaya St., Skolkovo, Moscow region, 143025 (Russian Federation)

We present a practical design and implementation of a broadband sample holder suitable for microwave experiments with superconducting integrated circuits at millikelvin temperatures. Proposed design can be easily integrated in standard dilution cryostats, has flat pass band response in a frequency range from 0 to 32 GHz, allowing the RF testing of the samples with substrate size up to 4 × 4 mm{sup 2}. The parasitic higher modes interference in the holder structure is analyzed and prevented via design considerations. The developed setup can be used for characterization of superconducting parametric amplifiers, bolometers, and qubits. We tested the designed sample holder by characterizing of a superconducting flux qubit at 20 mK temperature.

• OSTI ID: 22305903
• Journal Information: Review of Scientific Instruments, Vol. 85, Issue 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BOLOMETERS
CRYOSTATS
DILUTION
GHZ RANGE
INTEGRATED CIRCUITS
MICROWAVE RADIATION
PARAMETRIC AMPLIFIERS
QUBITS
SAMPLE HOLDERS
SPECTROSCOPY
SUPERCONDUCTIVITY
TEMPERATURE RANGE 0013-0065 K