Current and Magnetic Field Dependences of a Superconducting Coplanar Waveguide Resonator
arXiv:1805.05131 · doi:10.7567/1347-4065/aafb65
Abstract
We fabricated superconducting coplanar waveguide resonator with leads for dc bias, which enables the ac conductivity measurement under dc bias. The current and the magnetic field dependences of resonance properties were measured, and hysteretic behavior was observed as a function of the dc driving current. The observed shift in the inverse of the quality factor and the center frequency were understood by considering both the motion of vortices and the suppression of the order parameter with dc current. Our investigation revealed that the strongly pinned vortices have little infuluence on the change in the center frequency, while it still affects that of the quality factor. Our results indicate that an accurate understanding of the dynamics of driven vortices is indispensable when we attempt to control the resonance properties with high precision.
References in corpus (17)
- Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
- Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation
- Atomic physics and quantum optics using superconducting circuits
- Coherent quantum state storage and transfer between two phase qubits via a resonant cavity
- Hybrid Quantum Processors: molecular ensembles as quantum memory for solid state circuits
- Moving glass theory of driven lattices with disorder
- Strong magnetic coupling of an ultracold gas to a superconducting waveguide cavity
- Magnetic hysteresis effects in superconducting coplanar microwave resonators
- Reducing microwave loss in superconducting resonators due to trapped vortices
- Magnetic field tuning of coplanar waveguide resonators
- AC-driven Vortices and the Hall Effect in a Superconductor with a Tilted Washboard Pinning Potential
- Introduction of a DC Bias into a High-Q Superconducting Microwave Cavity
- Probing the pinning landscape in type-II superconductors via Campbell penetration depth
- Campbell Penetration Depth of a Superconductor in the Critical State
- Frequency-Tunable Josephson Junction Resonator for Quantum Computing
- Trapped electron coupled to superconducting devices
- Development of a broadband reflective T-filter for voltage biasing high-Q superconducting microwave cavities