Dispersive Response of a Disordered Superconducting Quantum Metamaterial
arXiv:1504.01634 · doi:10.3390/photonics2020449
Abstract
We consider a disordered quantum metamaterial formed by an array of superconducting flux qubits coupled to microwave photons in a cavity. We map the system on the Tavis-Cummings model accounting for the disorder in frequencies of the qubits. The complex transmittance is calculated with the parameters taken from state-of-the-art experiments. We demonstrate that photon phase shift measurements allow to distinguish individual resonances in the metamaterial with up to 100 qubits, in spite of the decoherence spectral width being remarkably larger than the effective coupling constant. Our simulations are in agreement with the results of the recently reported experiment.
10 pages, 4 figures
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Cited by in corpus (10)
- Microwave photonics with superconducting quantum circuits
- Dynamical Lamb Effect in a Tunable Superconducting Qubit-Cavity System
- Josephson Metamaterial with a widely tunable positive/negative Kerr constant
- Strong radiative interactions and subradiance in disordered metamaterials
- Parametrically driven hybrid qubits-photon systems: dissipation-induced quantum entanglement and photon production from vacuum
- Double resonance response of a superconducting quantum metamaterial: manifestation of non-classical states of photons
- Spectrum of the Dicke model in a superconducting qubit-oscillator system
- Cooperative field localization and excitation eigenmodes in disordered metamaterials
- Signatures of nonclassical effects in tomograms
- Quantum synchronization in disordered superconducting metamaterials