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@ARTICLE{Barends:1043633,
      author       = {Barends, R. and Wilhelm-Mauch, Frank},
      title        = {{P}erformance-centric roadmap for building a
                      superconducting quantum computer},
      journal      = {Quantum Physics},
      publisher    = {arXiv},
      reportid     = {FZJ-2025-02941},
      year         = {2025},
      abstract     = {One of the outstanding challenges in contemporary science
                      and technology is building a quantum computer that is useful
                      in applications. By starting from an estimate of the
                      algorithm success rate, we can explicitly connect gate
                      fidelity to quantum system size targets and define a
                      quantitative roadmap that maximizes performance while
                      avoiding distractions. We identify four distinct phases for
                      quantum hardware and enabling technology development. The
                      aim is to improve performance as we scale and increase the
                      algorithmic complexity the quantum hardware is capable of
                      running, the algorithmic radius, towards a point that sets
                      us up for quantum advantage with deep noisy
                      intermediate-scale quantum computing (NISQ) as well as
                      building a large-scale error-corrected quantum computer
                      (QEC). Our hope is that this document contributes to shaping
                      the discussion about the future of the field.},
      keywords     = {Quantum Physics (quant-ph) (Other) / FOS: Physical sciences
                      (Other)},
      cin          = {PGI-12 / PGI-13},
      cid          = {I:(DE-Juel1)PGI-12-20200716 / I:(DE-Juel1)PGI-13-20210701},
      pnm          = {5221 - Advanced Solid-State Qubits and Qubit Systems
                      (POF4-522) / BMBF 13N16149 - QSolid - Quantencomputer im
                      Festkörper (BMBF-13N16149)},
      pid          = {G:(DE-HGF)POF4-5221 / G:(DE-Juel1)BMBF-13N16149},
      typ          = {PUB:(DE-HGF)25},
      doi          = {10.48550/arXiv.2506.23178},
      url          = {https://juser.fz-juelich.de/record/1043633},
}