Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Springer eBooks

Semiclassical Analysis of 1/fNoise in Josephson Qubits

Elisabetta Paladino, Lara Faoro, Antonio D’Arrigo, G. Falci

Published Jan 1, 2004• 0 citations
Publisher
DOI
10.1007/978-1-4419-9092-1_26

Related papers

Analysis of Rabi Oscillations of a Josephson Phase Qubit

S. K. Dutta, Huizhong Xu, Frederick W. Strauch +9 more

Bulletin of the American Physical Society•Mar 17, 2006•0 citations

Inclusion of pairing fluctuations in a semiclassical approach: the case of study of the Josephson effect

V. Piselli, L. Pisani, Giancarlo Calvanese Strinati

arXiv:2410.04382•The European Physical Journal A•Mar 5, 2024•1 citation

Decoherence and 1/f noise in Josephson qubits

Elisabetta Paladino, Lara Faoro, Antonio D’Arrigo +1 more

arXiv:cond-mat/0312411•Physica E Low-dimensional Systems and Nanostructures•Mar 25, 2003•24 citations

Classical dynamics of interacting qubits driven by a quantum field

B. M. Rodríguez-Lara, Ray‐Kuang Lee

B. M. Rodŕiguez-Lara 2 and Ray-Kuang Lee 3 Institute of Photonics Technologies, National Tsing-Hua University, Hsinchu 300, Taiwan Centre for Quantum Technologies, National University of Singapore, 2 Science Drive 3, Singapore 117542 Department of Physics, National Tsing-Hua University, Hsinchu 300, Taiwan Abstract We present a stability analysis of a qubit ensemble driven by a quantum field in the semiclassical limit. Transitions from Rabi to Josephson dynamics are identified depending on both the intra-qubit interactions to field-ensemble coupling ratio and the ratio between the total excitation number and the ensemble size. The quantized field is found to produce asymmetric dynamics for symmetric initial conditions for both Rabi and Josephson oscillations.

•Feb 18, 2011•0 citations

1/f Noise in Josephson Qubits

Elisabetta Paladino, Lara Faoro, G. Falci +1 more

Springer eBooks•Jan 1, 2002•1 citation

Phenomenological noise model for superconducting qubits: two-state fluctuators and 1/fnoise

Dong Zhou, Robert Joynt

We present a general phenomenological model for superconducting qubits subject to noise produced by two-state fluctuators whose couplings to the qubit are all roughly the same. In flux qubit experiments where the working point can be varied, it is possible to extract both the form of the noise spectrum and the number of fluctuators. We find that the noise has a broad spectrum consistent with 1/ f noise and that the number of fluctuators with slow switching rates is surprisingly small: less than 100. If the fluctuators are interpreted as unpaired surface spins, then the size of their magnetic moments is surprisingly large.

arXiv:1102.5766•Superconductor Science and Technology•Feb 23, 2012•9 citations
B. M. Rodŕiguez-Lara 2 and Ray-Kuang Lee 3 Institute of Photonics Technologies, National Tsing-Hua University, Hsinchu 300, Taiwan Centre for Quantum Technologies, National University of Singapore, 2 Science Drive 3, Singapore 117542 Department of Physics, National Tsing-Hua University, Hsinchu 300, Taiwan Abstract We present a stability analysis of a qubit ensemble driven by a quantum field in the semiclassical limit. Transitions from Rabi to Josephson dynamics are identified depending on both the intra-qubit interactions to field-ensemble coupling ratio and the ratio between the total excitation number and the ensemble size. The quantized field is found to produce asymmetric dynamics for symmetric initial conditions for both Rabi and Josephson oscillations.
We present a general phenomenological model for superconducting qubits subject to noise produced by two-state fluctuators whose couplings to the qubit are all roughly the same. In flux qubit experiments where the working point can be varied, it is possible to extract both the form of the noise spectrum and the number of fluctuators. We find that the noise has a broad spectrum consistent with 1/ f noise and that the number of fluctuators with slow switching rates is surprisingly small: less than 100. If the fluctuators are interpreted as unpaired surface spins, then the size of their magnetic moments is surprisingly large.