quantumlib/qsim

Fast C++ and Python library for state-vector simulation of quantum circuits.

C++668 stars201 forksApache-2.0

algorithms api cirq cpp google-quantum nisq python quantum quantum-algorithms quantum-circuit quantum-circuit-simulator quantum-computing quantum-information quantum-programming quantum-simulation quantum-simulator schrodinger-equation sdk simulation

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quantumlib/qsim has 668 GitHub stars.

It currently ranks #20351 daily, #21114 weekly, #23711 monthly by momentum on Trending Repos; its best-ever rank is #1288.

Trending Repos first recorded it on May 16, 2026.

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