qusim 1.0.3

A simple example package

QuSim, a transmon system simulator

Table of Contents

1. About
2. User_Guide

About

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.

Look up the PyPI page: https://pypi.org/project/qusim/

User_Guide

Install (use pip)

pip install qusim

Requirement

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

Download

Just downloading the entire folder.

There is also a release.

Usage

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.

Features

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