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@INPROCEEDINGS{Xu:916716,
      author       = {Xu, Xuexin and Ansari, Mohammad},
      title        = {{P}arasitic free gate},
      reportid     = {FZJ-2023-00056},
      year         = {2022},
      abstract     = {Implementation of high-performance two-qubit gates is a key
                      factor for scalable quantum computation. However, the
                      state-of-the-art superconducting two-qubit gates are yet far
                      from being perfect due to the parasitic ZZ coupling. In this
                      paper, we propose a parasitic free (PF) gate to suppress
                      such unwanted interaction in use of the tunable coupler. The
                      gate is operated in two modes: in idle mode the coupler
                      frequency is tuned such that the two qubits are effectively
                      decoupled; in driven mode the coupler frequency is tuned so
                      as to result in a nonzero static ZZ interaction, which later
                      can be cancelled by the dynamical part. Our theory shows
                      that using this method the fidelity of a CR gate is able to
                      achieve the coherence limit.},
      month         = {Mar},
      date          = {2022-03-14},
      organization  = {APS March Meeting, Chicago (USA), 14
                       Mar 2022 - 18 Mar 2022},
      subtyp        = {Invited},
      cin          = {PGI-2},
      cid          = {I:(DE-Juel1)PGI-2-20110106},
      pnm          = {5224 - Quantum Networking (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5224},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/916716},
}