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@ARTICLE{Krause:906955,
      author       = {Krause, J. and Dickel, C. and Vaal, E. and Vielmetter, M.
                      and Feng, J. and Bounds, R. and Catelani, G. and Fink, J. M.
                      and Ando, Yoichi},
      title        = {{M}agnetic {F}ield {R}esilience of {T}hree-{D}imensional
                      {T}ransmons with {T}hin-{F}ilm {A}l/{A}l{O} x / {A}l
                      {J}osephson {J}unctions {A}pproaching 1 {T}},
      journal      = {Physical review applied},
      volume       = {17},
      number       = {3},
      issn         = {2331-7019},
      address      = {College Park, Md. [u.a.]},
      publisher    = {American Physical Society},
      reportid     = {FZJ-2022-01773},
      pages        = {034032},
      year         = {2022},
      abstract     = {Magnetic-field-resilient superconducting circuits enable
                      sensing applications and hybrid quantum computing
                      architectures involving spin or topological qubits and
                      electromechanical elements, as well as studying flux noise
                      and quasiparticle loss. We investigate the effect of
                      in-plane magnetic fields up to 1 T on the spectrum and
                      coherence times of thin-film three-dimensional aluminum
                      transmons. Using a copper cavity, unaffected by strong
                      magnetic fields, we can probe solely the effect of magnetic
                      fields on the transmons. We present data on a
                      single-junction and a
                      superconducting-quantum-interference-device (SQUID) transmon
                      that are cooled down in the same cavity. As expected, the
                      transmon frequencies decrease with increasing field, due to
                      suppression of the superconducting gap and a geometric
                      Fraunhofer-like contribution. Nevertheless, the thin-film
                      transmons show strong magnetic field resilience: both
                      transmons display microsecond coherence up to at least 0.65
                      T, and T1 remains above 1μs over the entire measurable
                      range. SQUID spectroscopy is feasible up to 1 T, the limit
                      of our magnet. We conclude that thin-film aluminum Josephson
                      junctions are suitable hardware for superconducting circuits
                      in the high-magnetic-field regime.},
      cin          = {PGI-11},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-11-20170113},
      pnm          = {5221 - Advanced Solid-State Qubits and Qubit Systems
                      (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5221},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000770371400003},
      doi          = {10.1103/PhysRevApplied.17.034032},
      url          = {https://juser.fz-juelich.de/record/906955},
}