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

Bulletin of the American Physical Society

Anomalous magnetic field effects in high Q superconducting resonators

M. Lenander, R. Barends, Yu Chen, J. Kelly, Erik A. Lucero, M. Mariantoni, A. Megrant, P. J. J. O’Malley, C. Neill, D. Sank, A. Vainsencher, H. Wang, J. Wenner, T. White, Yan Yin, Jingxiang Zhao, C. J. Palmstrøm, Andrew N. Cleland, John M. Martinis

Published Mar 1, 2012• 0 citations
OpenAlex

Related papers

Spin-flip two-level-system-induced anomalous magnetic field properties in thin-film superconducting resonators

Zi-Qing Huang, Shu-Kun Ye, Yong-Qiang Xu +8 more

Physical Review Applied•Aug 27, 2025•1 citation

Magnetic Field Effects on High Quality Factor Superconducting Coplanar Resonators

A. Megrant, Charles Neill, R. Barends +15 more

Bulletin of the American Physical Society•Mar 18, 2013•0 citations

Anomalous Behavior of High Quality Factor Planar Superconducting Resonators

A. Megrant, Zijun Chen, B. Chiaro +19 more

Bulletin of the American Physical Society•Mar 5, 2014•0 citations

On-chip superconducting resonator devices for sensitive spin detection at high magnetic fields.

Giovanni Franco-Rivera, Josiah Cochran, Lei Chen +3 more

Bulletin of the American Physical Society•Mar 4, 2020•0 citations

Superconducting Nanowire Resonators for Coupling to Spin Qubits at High Magnetic Fields

Nodar Samkharadze, Pasquale Scarlino, Alessandro Bruno +2 more

Bulletin of the American Physical Society•Mar 4, 2015•0 citations

Revealing spin-flip two-level systems using ultra-thin film superconducting resonators

Zi‐Qing Huang, Shu-Kun Ye, Yong-Qiang Xu +8 more

Material disorders are one of the major sources of noise and loss in solid-state quantum devices, whose behaviors are often modeled as two-level systems (TLSs) formed by charge tunneling between neighboring sites. However, the role of their spins in tunneling and its impact on device performance remain highly unexplored. In this work, employing ultra-thin TiN superconducting resonators, we reveal anomalous TLS behaviors by demonstrating an unexpected increase in resonant frequency at low magnetic fields. Furthermore, a spin-flip TLS model is proposed, in which an effective spin-orbit coupling is generated by inhomogeneous local magnetic fields from defect spins. This mechanism mixes charge tunnelings and spin flips, quantitatively reproducing the observed frequency-field relationship and its temperature dependence. This work deepens the understanding of spin-dependent TLS behaviors, offering the possibility of magnetically engineering noise and loss in solid-state quantum devices.

arXiv:2412.15856•Dec 20, 2024•0 citations
Material disorders are one of the major sources of noise and loss in solid-state quantum devices, whose behaviors are often modeled as two-level systems (TLSs) formed by charge tunneling between neighboring sites. However, the role of their spins in tunneling and its impact on device performance remain highly unexplored. In this work, employing ultra-thin TiN superconducting resonators, we reveal anomalous TLS behaviors by demonstrating an unexpected increase in resonant frequency at low magnetic fields. Furthermore, a spin-flip TLS model is proposed, in which an effective spin-orbit coupling is generated by inhomogeneous local magnetic fields from defect spins. This mechanism mixes charge tunnelings and spin flips, quantitatively reproducing the observed frequency-field relationship and its temperature dependence. This work deepens the understanding of spin-dependent TLS behaviors, offering the possibility of magnetically engineering noise and loss in solid-state quantum devices.