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@INPROCEEDINGS{Schlabes:916980,
      author       = {Schlabes, Arne},
      title        = {{A}chieving fast, high fidelity single qubit gates for the
                      {K}err-{C}at {Q}ubit},
      reportid     = {FZJ-2023-00246},
      year         = {2022},
      abstract     = {The Kerr-Cat Qubit is a biased noise qubit realised by
                      coherent states in an oscillator. We investigated the effect
                      of a detuning and a single photon drive on this qubit. Both
                      of which cause the coherent states │±α〉 defined by the
                      two photon drive and Kerr nonlinearity to be no longer
                      eigenstates of our Hamiltonian. For a small detuning and
                      single photon drive strength the difference to the
                      eigenstates is small enough so that these states are a good
                      approximation of the eigenstates. However this limits us to
                      the regime in which X and Z rotations which are realised by
                      a detuning and a single photon drive respectively are slow.
                      Increasing these terms will speed up the gates but will
                      result in considerably lower fidelities as the coherent
                      states are deformed over time. Using coherent states that
                      are better approximations of eigenstates than │±α〉 can
                      result in fast, high fidelity gates. These displaced states
                      have a semi periodic deformation in them, which needs to be
                      considered carefully and gives rise to a discrete set of
                      detunings and Kerr nonlinearities that produce high fidelity
                      rotations.},
      month         = {Mar},
      date          = {2022-03-14},
      organization  = {APS March Meeting, online (USA), 14
                       Mar 2022 - 18 Mar 2022},
      subtyp        = {After Call},
      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/916980},
}