Coherent Oscillations of Driven rf SQUID Metamaterials
arXiv:1702.07727 · doi:10.1103/PhysRevE.95.050201
Abstract
Through experiments and numerical simulations we explore the behavior of rf SQUID (radio frequency superconducting quantum interference device) metamaterials, which show extreme tunability and nonlinearity. The emergent electromagnetic properties of this metamaterial are sensitive to the degree of coherent response of the driven interacting SQUIDs. Coherence suffers in the presence of disorder, which is experimentally found to be mainly due to a dc flux gradient. We demonstrate methods to recover the coherence, specifically by varying the coupling between the SQUID meta-atoms and increasing the temperature or the amplitude of the applied rf flux.
5 pages, 6 figures
References in corpus (8)
- Optical Hyperlens: Far-field imaging beyond the diffraction limit
- Superconducting Metamaterials
- Tunability of Superconducting Metamaterials
- Chimeras in SQUID Metamaterials
- Invariant submanifold for series arrays of Josephson junctions
- Resonance linewidth and inhomogeneous broadening in a metamaterial array
- Wide-Band Tuneability, Nonlinear Transmission, and Dynamic Multistability in SQUID Metamaterials
- Intermodulation in Nonlinear SQUID Metamaterials: Experiment and Theory
Cited by in corpus (15)
- Josephson Metamaterial with a widely tunable positive/negative Kerr constant
- Optical response of atom chains beyond the limit of low light intensity: The validity of the linear classical oscillator model
- Pattern formation and chimera states in 2D SQUID metamaterials
- Strong radiative interactions and subradiance in disordered metamaterials
- Transient Chaos Generates Small Chimeras
- Imaging collective behavior in an rf-SQUID metamaterial tuned by DC and RF magnetic fields
- Chimera states in networks of locally and non-locally coupled SQUIDs
- Controlled Generation of Chimera States in SQUID Metasurfaces using DC Flux Gradients
- Tunable Superconducting Josephson Dielectric Metamaterial
- Multistable Dissipative Breathers and Novel Collective States in SQUID Lieb Metamaterials
- Analytical and Numerical Analysis of Linear and Nonlinear Properties of an rf-SQUID Based Metasurface
- Point-dipole approximation for small systems of strongly coupled radiating nanorods
- Tuning of Strong Nonlinearity in rf SQUID Meta-Atoms
- Effects of Strong Capacitive Coupling Between Meta-Atoms in rf SQUID Metamaterials
- Strongly nonlinear regime of Josephson transmission lines revealed by two-tone spectroscopy