Abstract
| Original language | English |
|---|---|
| Article number | 6325 |
| Number of pages | 9 |
| Journal | Scientific Reports |
| Volume | 8 |
| DOIs | |
| Publication status | Published - 20 Apr 2018 |
| MoE publication type | A1 Journal article-refereed |
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Flux-tunable heat sink for quantum electric circuits. / Partanen, M. (Corresponding Author); Tan, K.Y.; Masuda, S.; Govenius, J.; Lake, R.E.; Jenei, M.; Grönberg, Leif; Hassel, Juha; Simbierowicz, Slawomir; Vesterinen, Visa; Tuorila, J.; Ala-Nissilä, T.; Möttönen, M. (Corresponding Author).
In: Scientific Reports, Vol. 8, 6325, 20.04.2018.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Flux-tunable heat sink for quantum electric circuits
AU - Partanen, M.
AU - Tan, K.Y.
AU - Masuda, S.
AU - Govenius, J.
AU - Lake, R.E.
AU - Jenei, M.
AU - Grönberg, Leif
AU - Hassel, Juha
AU - Simbierowicz, Slawomir
AU - Vesterinen, Visa
AU - Tuorila, J.
AU - Ala-Nissilä, T.
AU - Möttönen, M.
N1 - Project: 253370
PY - 2018/4/20
Y1 - 2018/4/20
N2 - Superconducting microwave circuits show great potential for practical quantum technological applications such as quantum information processing. However, fast and on-demand initialization of the quantum degrees of freedom in these devices remains a challenge. Here, we experimentally implement a tunable heat sink that is potentially suitable for the initialization of superconducting qubits. Our device consists of two coupled resonators. The first resonator has a high quality factor and a fixed frequency whereas the second resonator is designed to have a low quality factor and a tunable resonance frequency. We engineer the low quality factor using an on-chip resistor and the frequency tunability using a superconducting quantum interference device. When the two resonators are in resonance, the photons in the high-quality resonator can be efficiently dissipated. We show that the corresponding loaded quality factor can be tuned from above 105 down to a few thousand at 10 GHz in good quantitative agreement with our theoretical model.
AB - Superconducting microwave circuits show great potential for practical quantum technological applications such as quantum information processing. However, fast and on-demand initialization of the quantum degrees of freedom in these devices remains a challenge. Here, we experimentally implement a tunable heat sink that is potentially suitable for the initialization of superconducting qubits. Our device consists of two coupled resonators. The first resonator has a high quality factor and a fixed frequency whereas the second resonator is designed to have a low quality factor and a tunable resonance frequency. We engineer the low quality factor using an on-chip resistor and the frequency tunability using a superconducting quantum interference device. When the two resonators are in resonance, the photons in the high-quality resonator can be efficiently dissipated. We show that the corresponding loaded quality factor can be tuned from above 105 down to a few thousand at 10 GHz in good quantitative agreement with our theoretical model.
UR - http://www.scopus.com/inward/record.url?scp=85045955776&partnerID=8YFLogxK
U2 - 10.1038/s41598-018-24449-1
DO - 10.1038/s41598-018-24449-1
M3 - Article
VL - 8
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
M1 - 6325
ER -