Fast control of dissipation in a superconducting resonator

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • VTT Technical Research Centre of Finland
  • Aalto University

Kuvaus

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 10 ns. 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.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli082601
Sivut1-4
JulkaisuApplied Physics Letters
Vuosikerta115
Numero8
TilaJulkaistu - 19 elokuuta 2019
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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