There are four main parts in this package: Toolbox, cqed, bsqubits, and projects. They serves for different purposes in Danyang's research.

• Toolbox (or tb): Toolbox includes functions for optimization, saving and loading data, etc. It is a general toolbox for all the projects.

• cqed: General codes for simulating the cqed systems. It includes simulations for pulse, decoherence, critical photon number, etc. I also define the FlexibleSweep class, inherited from the scqubits.ParameterSweep class, which helps to define swept parameters in a different way. Specifically, it has module custom_sweeps for a bunch of pre-defined custom sweeps, which can be used in scqubits.ParameterSweep class.

• bsqubits (or bsq): A package for simulating and studying some spacific systems, especially for the resonator-qubit systems. The code isn't general enough to be used for other systems. Very high level and practical. Specifically, it has module QEC_graph for simulating the cat code using a graph representation.

• projects (or prj): A collection for all other projects, including files collected from other collaborators.

pip install chencrafts