期刊
APPLIED PHYSICS LETTERS
卷 115, 期 8, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5116659
关键词
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资金
- European Union's Horizon 2020 Research and Innovation Programme under Marie Skodowska-Curie Grant [795159]
- European Research Council [681311]
- Academy of Finland Centre of Excellence in Quantum Technology [312300, 316619, 305237]
- JST ERATO [JPMJER1601]
- JSPS KAKENHI [18K03486]
- EU Flagship project QMiCS
- Emil Aaltonen Foundation
- Alfred Kordelin Foundation
- Vilho, Yrjo and Kalle Vaisala Foundation
- Academy of Finland (AKA) [316619] Funding Source: Academy of Finland (AKA)
- Grants-in-Aid for Scientific Research [18K03486] Funding Source: KAKEN
- Marie Curie Actions (MSCA) [795159] Funding Source: Marie Curie Actions (MSCA)
We report on fast tunability of an electromagnetic environment coupled to a superconducting coplanar waveguide resonator. Namely, we utilize a recently developed quantum-circuit refrigerator (QCR) to experimentally demonstrate a dynamic tunability in the total damping rate of the resonator up to almost two orders of magnitude. Based on the theory, it corresponds to a change in the internal damping rate by nearly four orders of magnitude. The control of the QCR is fully electrical, with the shortest implemented operation times in the range of 10ns. This experiment constitutes a fast active reset of a superconducting quantum circuit. In the future, a similar scheme can potentially be used to initialize superconducting quantum bits.
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