Source code for "Engineering non-Gaussian bosonic gates through quantum signal processing"

This repository contains the Wolfram Mathematica source code associated with the article “Engineering non-Gaussian bosonic gates through quantum signal processing” by Pak-Tik Fong and Hoi-Kwan Lau. The notebooks implement numerical calculations and simulations for engineering non-Gaussian bosonic operations using quantum signal processing (QSP). They include the construction of QSP rotation sequences for mod-kk gates and noiseless linear amplification (NLA) under dispersive coupling. Specifically, the code compares QSP-based implementations with conventional multitone-driving schemes for dispersive- and Jaynes-Cummings-coupled qumode-qubit systems, including the simulations used to generate Figs. 2, 5(a), and 5(b) of the paper. The notebooks were developed using Wolfram Mathematica 12.0.