Millisecond charge-parity fluctuations and induced decoherence in a superconducting transmon qubit

@inproceedings{Rist2013MillisecondCF,
  title={Millisecond charge-parity fluctuations and induced decoherence in a superconducting transmon qubit},
  author={Diego Rist{\`e} and C. C. Bultink and M. J. Tiggelman and R. N. Schouten and K. W. Lehnert and L Dicarlo},
  booktitle={Nature communications},
  year={2013}
}
The tunnelling of quasiparticles across Josephson junctions in superconducting quantum circuits is an intrinsic decoherence mechanism for qubit degrees of freedom. Understanding the limits imposed by quasiparticle tunnelling on qubit relaxation and dephasing is of theoretical and experimental interest, particularly as improved understanding of extrinsic mechanisms has allowed crossing the 100 microsecond mark in transmon-type charge qubits. Here, by integrating recent developments in high… CONTINUE READING