qsim
by quantumlib · GitHub
Fast C++ and Python library for state-vector simulation of quantum circuits.
⭐ Stars
677
🍴 Forks
207
📜 License
Apache-2.0
Commercial use OK📅 Created
2020
🔄 Last commit
19 days ago
🏷️ Category
algorithms
💻 Language
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📈 Star history
2026-07-202026-07-21
📄 About
Fast C++ and Python library for state-vector simulation of quantum circuits.
❓ Frequently asked questions
What is qsim?
Fast C++ and Python library for state-vector simulation of quantum circuits.
Is qsim open source?
qsim is an open-source project. It is released under the Apache-2.0 license.
Is qsim free?
Yes. qsim is free and open source — you can use, modify and self-host it.
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