Stability of longitudinal coupling for Josephson charge qubits
classification
❄️ cond-mat.mes-hall
cond-mat.supr-con
keywords
couplinglongitudinalstabilityadditionanalyzebitscertaincharge
read the original abstract
For inductively coupled superconducting quantum bits, we determine the conditions when the coupling commutes with the single-qubit terms. We show that in certain parameter regimes such longitudinal coupling can be stabilized with respect to variations of the circuit parameters. In addition, we analyze its stability against fluctuations of the control fields.
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