Frequency-tunable Kerr-free three-wave mixing with a gradiometric SNAIL
Frequency-tunable Kerr-free three-wave mixing with a gradiometric SNAIL
Three-wave mixing is a key process in superconducting quantum information processing, being involved in quantum-limited amplification and parametric coupling between superconducting cavities. These operations can be implemented by superconducting nonlinear asymmetric inductive element (SNAIL)-based devices that present a Kerr-free flux-bias point where unwanted parasitic effects, such as Stark shift, are …