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@INPROCEEDINGS{Schlsser:1032145,
      author       = {Schlösser, Mario and Heil, Roger and Roth, Christian and
                      Bekman, Ilja and Ardila-Perez, Luis Eudaro and Scheller,
                      Lukas and Fuchs, Marvin and Gartmann, Robert and Sander,
                      Oliver and Jerger, Markus and Barends, Rami and van Waasen,
                      Stefan},
      title        = {{S}calable {R}oom {T}emperature {C}ontrol {E}lectronics for
                      {A}dvanced {H}igh-{F}idelity {Q}ubit {C}ontrol},
      reportid     = {FZJ-2024-06031},
      year         = {2024},
      abstract     = {Quantum bit control systems using room temperature
                      electronics provide universities and research institutions
                      with a cost-effective entry into quantum computing. Various
                      approaches address the need for straightforward qubit
                      controllers, particularly those based on AMD’s
                      next-generation RFSoC FPGA, which integrate adaptive SoCs
                      with internal ADCs and DACs. As superconducting qubit
                      architectures advance to incorporate flux elements for
                      direct Z axis control and the number of qubits grows, the
                      demand for high-quality and numerous control channels
                      increases. Within the project QSolid - Quantum Computer in
                      the Solid State, a quantum computer demonstrator integrates
                      a coupled ladder geometry qubit architecture demanding a
                      significant higher number of flux lines. This paper explores
                      the requirements for integrating and expanding the
                      "QiController" electronics from Karlsruhe Institute of
                      Technology. The new system includes up to ten additional
                      cards capable of driving a total of 240 direct flux lines,
                      utilizing low-latency DACs from Analog Devices with
                      peripheral FPGAs. Our joint system design leverages the
                      modularity, scalability, and thermal management of the
                      industrial Standard ATCA, ensuring robust performance and
                      ease of maintenance in this multi-FPGA setup. Initial unit
                      tests of the electronics show promising improvements in
                      noise levels and quality, suggesting that future
                      verification on real qubit devices could establish this
                      approach as a viable solution for scalable room-temperature
                      control hardware. Developing a qubit control demonstrator
                      for the 30-qubit device provides fundamental insights into
                      transforming these room-temperature electronics into a
                      scalable, integrated cryogenic solution.},
      month         = {Sep},
      date          = {2024-09-15},
      organization  = {IEEE International Conference on
                       Quantum Computing and Engineering,
                       Montreal (Canada), 15 Sep 2024 - 20 Sep
                       2024},
      subtyp        = {Other},
      cin          = {ZEA-2},
      cid          = {I:(DE-Juel1)ZEA-2-20090406},
      pnm          = {5223 - Quantum-Computer Control Systems and Cryoelectronics
                      (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5223},
      typ          = {PUB:(DE-HGF)24},
      doi          = {10.34734/FZJ-2024-06031},
      url          = {https://juser.fz-juelich.de/record/1032145},
}