% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Solgun:867507,
      author       = {Solgun, Firat and DiVincenzo, David P. and Gambetta, Jay
                      M.},
      title        = {{S}imple {I}mpedance {R}esponse {F}ormulas for the
                      {D}ispersive {I}nteraction {R}ates in the {E}ffective
                      {H}amiltonians of {L}ow {A}nharmonicity {S}uperconducting
                      {Q}ubits},
      journal      = {IEEE transactions on microwave theory and techniques},
      volume       = {67},
      number       = {3},
      issn         = {1557-9670},
      address      = {New York, NY},
      publisher    = {IEEE},
      reportid     = {FZJ-2019-06130},
      pages        = {928 - 948},
      year         = {2019},
      abstract     = {For superconducting quantum processors consisting of low
                      anharmonicity qubits such as transmons, we give a complete
                      microwave description of the system in the qubit subspace.
                      We assume that the qubits are dispersively coupled to a
                      distributed microwave structure such that the detunings of
                      the qubits from the internal modes of the microwave
                      structure are stronger than their couplings. We define
                      “qubit ports” across the terminals of the Josephson
                      junctions and “drive ports” where transmission lines
                      carrying drive signals reach the chip and we obtain the
                      multiport impedance response of the linear passive part of
                      the system between the ports. We then relate interaction
                      parameters in between qubits and between the qubits and the
                      environment to the entries of this multiport impedance
                      function; in particular, we show that the exchange coupling
                      rate J between qubits is related in a simple way to the
                      off-diagonal entry connecting the qubit ports. Similarly, we
                      relate couplings of the qubits to voltage drives and lossy
                      environment to the entries connecting the qubits and the
                      drive ports. Our treatment takes into account all the modes
                      (possibly infinite) that might be present in the distributed
                      electromagnetic structure and provides an efficient method
                      for the modeling and analysis of the circuits.},
      cin          = {PGI-11 / PGI-2},
      ddc          = {620},
      cid          = {I:(DE-Juel1)PGI-11-20170113 / I:(DE-Juel1)PGI-2-20110106},
      pnm          = {144 - Controlling Collective States (POF3-144)},
      pid          = {G:(DE-HGF)POF3-144},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000460660900011},
      doi          = {10.1109/TMTT.2019.2893639},
      url          = {https://juser.fz-juelich.de/record/867507},
}