6 papers · 1 filter
Nonlinear Feedback in Josephson Circuit Optimization: Application to a Kerr-Reversal JTWPA
Emanuele Palumbo, Alessandro Alocco, Andrea Celotto +4
Optimizing Josephson-based nonlinear microwave devices is computationally demanding because the straightforward approach requires exploring broad circuit parameter spaces through e…
Device-Agnostic Microwave Noise Metrology for Nonlinear Cryogenic Quantum Devices
Andrea Celotto, Alessandro Alocco, Bernardo Galvano +6
Microwave devices capable of near-quantum-limited signal processing are essential components in the toolbox of solid-state quantum technologies. The manipulation and readout of sin…
JCO: Optimization Framework for Nonlinear Superconducting Circuits Using a Lumped-Element Approach and Harmonic Balance
Emanuele Palumbo, Alessandro Alocco, Andrea Celotto +4
In this contribution we present JosephsonCircuitsOptimizer.jl (JCO), a simulation and optimization framework based on the JosephsonCircuits.jl library for Julia. It models supercon…
Programmable Microwave Cluster States via Josephson Metamaterials
A. Alocco, A. Celotto, E. Palumbo +5
Cluster states are a fundamental resource for continuous-variable quantum computing, enabling measurement-based protocols that can scale beyond the limitations of qubit-based archi…
Towards Quantifying Two-Mode Correlation Linewidths in Quantum Circuits
Alessandro Alocco, Andrea Celotto, Luca Fasolo +7
This paper aims to quantify the linewidth of two-mode correlations in Traveling Wave Parametric Amplifiers (TWPAs). Artifacts induced by data acquisition and processing, such as wi…
Broadband parametric amplification in DARTWARS
Marco Faverzani, Pietro Campana, Rodolfo Carobene +46
Superconducting parametric amplifiers offer the capability to amplify feeble signals with extremely low levels of added noise, potentially reaching quantum-limited amplification. T…