Decoherence of the Superconducting Persistent Current Qubit

Lin Tian; L.S. Levitov; Caspar H. van der Wal; J.E. Mooij; T.P. Orlando; S. Lloyd; C.J.P.M. Harmans; J.J. Mazo

Decoherence of the Superconducting Persistent Current Qubit

Lin Tian, L.S. Levitov, Caspar H. van der Wal, J.E. Mooij, T.P. Orlando, S. Lloyd, C.J.P.M. Harmans, J.J. Mazo

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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.

Originele taal-2	English
Titel	EPRINTS-BOOK-TITLE
Uitgeverij	University of Groningen, The Zernike Institute for Advanced Materials
Aantal pagina's	10
Status	Published - 2000

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AU - Orlando, T.P.

AU - Lloyd, S.

AU - Harmans, C.J.P.M.

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AB - 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.

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