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@ARTICLE{DiVincenzo:139814,
      author       = {DiVincenzo, David P. and Solgun, Firat},
      title        = {{M}ulti-qubit parity measurement in circuit quantum
                      electrodynamics},
      journal      = {New journal of physics},
      volume       = {13},
      number       = {7},
      issn         = {1367-2630},
      address      = {[Bad Honnef]},
      publisher    = {Dt. Physikalische Ges.},
      reportid     = {FZJ-2013-05785},
      pages        = {075001},
      year         = {2013},
      note         = {17 pages, 4 figures, v2: 21 pages, 5 figures, enlarged
                      discussion of surface code implementation with 3D
                      techniques},
      abstract     = {We present a concept for performing direct parity
                      measurements on three or more qubits in microwave structures
                      with superconducting resonators coupled to
                      Josephson-junction qubits. We write the quantum-eraser
                      conditions that must be fulfilled for the parity
                      measurements as requirements for the scattering phase shift
                      of our microwave structure. We show that these conditions
                      can be fulfilled with present-day devices. We present one
                      particular scheme, implemented with two-dimensional cavity
                      techniques, in which each qubit should be coupled equally to
                      two different microwave cavities. The magnitudes of the
                      couplings that are needed are in the range that has been
                      achieved in current experiments. A quantum calculation
                      indicates that the measurement is optimal if the scattering
                      signal can be measured with near single photon sensitivity.
                      A comparison with an extension of a related proposal from
                      cavity optics is presented. We present a second scheme, for
                      which a scalable implementation of the four-qubit parities
                      of the surface quantum error correction code can be
                      envisioned. It uses three-dimensional cavity structures,
                      using cavity symmetries to achieve the necessary multiple
                      resonant modes within a single resonant structure.},
      cin          = {IAS-3 / PGI-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-3-20090406 / I:(DE-Juel1)PGI-2-20110106},
      pnm          = {422 - Spin-based and quantum information (POF2-422)},
      pid          = {G:(DE-HGF)POF2-422},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {1205.1910},
      howpublished = {arXiv:1205.1910},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1205.1910;\%\%$},
      UT           = {WOS:000321293500001},
      doi          = {10.1088/1367-2630/15/7/075001},
      url          = {https://juser.fz-juelich.de/record/139814},
}