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@ARTICLE{Schreiber:910812,
      author       = {Schreiber, Lars and Geck, Lotte},
      title        = {{S}echs auf einen {S}treich{E}bnen siliziumbasierte
                      {Q}uantencomputer den {W}eg zur {S}kalierbarkeit?},
      journal      = {Nature},
      volume       = {609},
      number       = {919},
      issn         = {0028-0836},
      address      = {London [u.a.]},
      publisher    = {Nature Publ. Group},
      reportid     = {FZJ-2022-04162},
      year         = {2022},
      comment      = {Universal control of a six-qubit quantum processor in
                      silicon},
      booktitle     = {Universal control of a six-qubit
                       quantum processor in silicon},
      abstract     = {Future quantum computers capable of solving relevant
                      problems will require a large number of qubits that can be
                      operated reliably [1]. However, the requirements of having a
                      large qubit count and operating with high fidelity are
                      typically conflicting. Spins in semiconductor quantum dots
                      show long-term promise [2,3] but demonstrations so far use
                      between one and four qubits and typically optimize the
                      fidelity of either single- or two-qubit operations, or
                      initialization and readout [4-11]. Here, we increase the
                      number of qubits and simultaneously achieve respectable
                      fidelities for universal operation, state preparation and
                      measurement. We design, fabricate and operate a six-qubit
                      processor with a focus on careful Hamiltonian engineering,
                      on a high level of abstraction to program the quantum
                      circuits, and on efficient background calibration, all of
                      which are essential to achieve high fidelities on this
                      extended system. State preparation combines initialization
                      by measurement and real-time feedback with
                      quantum-non-demolition measurements. These advances will
                      enable testing of increasingly meaningful quantum protocols
                      and constitute a major stepping stone towards large-scale
                      quantum computers.},
      cin          = {ZEA-2 / PGI-11},
      ddc          = {500},
      cid          = {I:(DE-Juel1)ZEA-2-20090406 / I:(DE-Juel1)PGI-11-20170113},
      pnm          = {5223 - Quantum-Computer Control Systems and Cryoelectronics
                      (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5223},
      typ          = {PUB:(DE-HGF)36 / PUB:(DE-HGF)3 / PUB:(DE-HGF)16},
      pubmed       = {36171383},
      UT           = {WOS:000862041000025},
      doi          = {10.1038/s41586-022-05117-x},
      url          = {https://juser.fz-juelich.de/record/910812},
}