Noise correlations in a flux qubit with tunable tunnel coupling

We have measured flux-noise correlations in a tunable superconducting flux qubit. The device consists of two loops that independently control the qubit’s energy splitting and tunnel coupling. Low-frequency flux noise in the loops causes fluctuations of the qubit frequency and leads to dephasing. Sin...

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Bibliographic Details
Main Authors: Yoshihara, Fumiki, Nakamura, Yasunobu, Gustavsson, Simon, Bylander, Jonas, Yan, Fei, Oliver, William D.
Other Authors: Lincoln Laboratory
Format: Article
Language:en_US
Published: American Physical Society 2011
Online Access:http://hdl.handle.net/1721.1/67056
https://orcid.org/0000-0002-7069-1025
https://orcid.org/0000-0002-4674-2806