1. About
2. User_Guide

A simulator aim at simulating and solving Transmon based qubit-coupler-resonator system.

This program is directed by Dr. Fei Yan, BAQIS. The original code structe is adoppted from Mr. Pan Shi, Wuhan University & BAQIS, and contributed by Mr. Jiheng Duan and Dr. Ruixia Wang, and Dr. Zhen Chen.

pip install qusim

You are required to install all these python packages in the system for running this simulator. See requirements.txt.

• Python, version >= 3.10
• qutip, version >= 4.6.3

• qutip 4.6.3 is strongly recommanded. As we use qutip 4.7.5, the propagator solver will crash your terminal.
• Nocie that qutip 4.6.3 requires scipy 1.10.1 exactly. Otherwise it will raise up error in function fast_crs_matrix. (https://stackoverflow.com/questions/76560698/python-3-10-qutip-attributeerror-cant-set-attribute-format)

• matplotlib
• pickle, any version
• jupyter lab or jupyter notebook, optional

Just downloading the entire folder.

There is also a release.

We have two version: the transmon_system.py and arb_qubit_system.py

The detailed tutorial are shown in folder tutorial/~, including required imports, define a system, what inside a system, scan zz-coupling, scan energy level, driven system dynamics, single qubit gate calibration, and DRAG calibration.

Our simulator includes the following features:

• Support multiple qubits
• Multiple initial state simulation
• Internal plot function
• DRAG
• Generalized for any qubit
• Good data saving and loading functions
• Tunable coupler helper
• Aviod crossing helper