arXiv:cond-mat/0407484 · International Symposium on Mesoscopic Superconductivity and Spintronics (MS+S)
DECOHERENCE DUE TO TELEGRAPH AND 1/F NOISE IN JOSEPHSON QUBITS
E. PALADINO, A. MASTELLONE, A. D’ARRIGO, G. Falci
Abstract
We study decoherence due to random telegraph and 1/f noise in Josephson qubits. We illustrate differences between gaussian and non gaussian effects at different working points and for different protocols. Features of the intrinsically non-gaussian and non-Markovian low-frequency noise may explain the rich physics observed in the spectroscopy and the dynamics of charge based devices.