The effect of microwaves on superconductors for kinetic inductance detection and parametric amplification

Abstract

We address, using concepts of the microscopic theory of superconductivity, parametric amplifiers and kinetic inductance detectors focusing on the interaction of microwave radiation with the superconducting condensate. This interaction was identified recently as the source of the apparent dissipation in microwave superconducting micro-resonators at low temperatures. Since the evaluation of the performance of practical devices based only on the microwave-response is not sufficiently informative about the underlying physical processes, we propose an experimental system to measure the microscopically relevant spectral functions as well as the non-equilibrium distribution function of a microwave-driven superconducting wire. The results indicate the limits of the commonly used phenomenological theories, providing the groundwork for further optimisation of the performance.

arXiv comment11 pages, 3 figures

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Cited by in corpus (9)

• Tuning microwave losses in superconducting resonators
• Simulating the behaviour of travelling wave superconducting parametric amplifiers using a commercial circuit simulator
• Significant Contributions of the Higgs Mode and Self-Energy Corrections to Low-Frequency Complex Conductivity in DC-Biased Superconducting Devices
• Reflection-enhanced gain in traveling-wave parametric amplifiers
• Linear and nonlinear properties of a compact high-kinetic-inductance WSi multimode resonator
• Volume dependence of microwave induced excess quasiparticles in superconducting resonators
• Millimetre Wave Kinetic Inductance Parametric Amplification using Ridge Gap Waveguide
• Nonlinear Co-simulation for Designing Kinetic Inductance Parametric Amplifiers
• Compact Itinerant Microwave Photonics with Superconducting High-Kinetic Inductance Microstrips