quantumlib

quantumlib/qsim

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

8 good first / help-wanted issues · C++ · last activity Sep 28, 2026

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
8 Open Issues Need Help Last updated: Sep 28, 2026

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good first issue contributors welcome a: devops a: tests P3
quantumlib/qsim
697

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

C++
#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
good first issue contributors welcome a: qsimcirq a: python a: mps
quantumlib/qsim
697

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

C++
#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
good first issue contributors welcome area/devops area/health priority/p1
quantumlib/qsim
697

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

C++
#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
good first issue contributors welcome priority/p3 area/mps
quantumlib/qsim
697

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

C++
#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
good first issue contributors welcome area/mps
quantumlib/qsim
697

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

C++
#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
help wanted area/devops area/health priority/p2
quantumlib/qsim
697

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

C++
#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
help wanted area/python area/health priority/p2
quantumlib/qsim
697

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

C++
#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
area/docs help wanted area/gpu priority/p2
quantumlib/qsim
697

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

C++
#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