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Insertable system for fast turnaround time microwave experiments in a dilution refrigerator

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摘要

Microwave experiments in dilution refrigerators are a central tool in the field of superconducting quantum circuits and other research areas. This type of experiments relied so far on attaching a device to the mixing chamber of a dilution refrigerator. The minimum turnaround time in this case is a few days as required by cooling down and warming up the entire refrigerator. We developed a new approach, in which a suitable sample holder is attached to a cold-insertable probe and brought in contact with transmission lines permanently mounted inside the cryostat. The total turnaround time is 8 h if the target temperature is 80 mK. The lowest attainable temperature is 30 mK. Our system can accommodate up to six transmission lines, with a measurement bandwidth tested from zero frequency to 12 GHz. This bandwidth is limited by low-pass components in the setup; we expect the intrinsic bandwidth to be at least 18 GHz. We present our setup, discuss the experimental procedure, and give examples of experiments enabled by this system. This new measurement method will have a major impact on systematic ultra-low temperature studies using microwave signals, including those requiring quantum coherence.

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  • 来源
    《Review of Scientific Instruments》 |2012年第9期|093904-1-093904-6|共6页
  • 作者

    Florian R. Ong; Jean-Luc Orgiazzi; Arlette de WaardGiorgio FrossatiAdrian Lupascu;

  • 作者单位

    Institute for Quantum Computing, Waterloo Institute for Nanotechnology, and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada;

    Institute for Quantum Computing, Waterloo Institute for Nanotechnology, and Department of Electrical and Computing Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada;

    Leiden Cryogenics b.v., Kenauweg 11, 2331 BA Leiden, The Netherlands;

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  • 正文语种 英语
  • 中图分类 仪器、仪表;
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