Decoherence of the Superconducting Persistent Current Qubit
Mesoscale and Nanoscale Physics
2007-05-23 v3 Quantum Physics
Abstract
Decoherence of a solid state based qubit can be caused by coupling to microscopic degrees of freedom in the solid. We lay out a simple theory and use it to estimate decoherence for a recently proposed superconducting persistent current design. All considered sources of decoherence are found to be quite weak, leading to a high quality factor for this qubit.
Cite
@article{arxiv.cond-mat/9910062,
title = {Decoherence of the Superconducting Persistent Current Qubit},
author = {Lin Tian and L. S. Levitov and Caspar H. van der Wal and J. E. Mooij and T. P. Orlando and S. Lloyd and C. J. P. M. Harmans and J. J. Mazo},
journal= {arXiv preprint arXiv:cond-mat/9910062},
year = {2007}
}
Comments
10 pages, 1 figure, Latex/revtex.To appear in proceedings of the NATO-ASI on "Quantum Mesoscopic Phenomena and Mesoscopic Devices in Microelectronics"; Corrections were made on Oct. 29th, 1999