quantumlib

quantumlib/Cirq

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

5.0K stars 1.2K forks 5.0K watchers Python Apache License 2.0

algorithms api cirq google google-quantum nisq python quantum quantum-algorithms quantum-circuit quantum-circuit-simulator quantum-computer-simulator quantum-computing quantum-development-kit quantum-information quantum-programming quantum-programming-language quantum-simulation sdk simulation

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63 Open Issues Need Help Last updated: Jul 1, 2026

Open Issues Need Help

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Update `cirq.RANDOM_STATE_OR_SEED_LIKE` to support `np.random.Generator` about 4 hours ago

help wanted good first issue kind/feature-request triage/accepted

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Consolidate the different implementations of state tomography 1 day ago

help wanted kind/health triage/accepted area/experiments complexity/medium skill-level/advanced area/tomography

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Add confusion maps support to PauliMeasurementGate 7 days ago

good first issue kind/feature-request triage/accepted area/paulis area/measurements

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

`ValueError: Measurement key missing` when using classically controlled CircuitOperation with controlled subcircuit 11 days ago

good first issue kind/bug-report triage/accepted area/transformers priority/before-1.7

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Create a gate to represent a PauliRotation 12 days ago

help wanted kind/feature-request triage/accepted area/gates good for learning priority/p3 priority/after-1.7

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Add optimal layout synthesis to Cirq 14 days ago

help wanted good part-time project kind/feature-request triage/accepted area/transformers area/routing good for learning priority/p3

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Histogram function doesn't fail for non-bool values. 22 days ago

help wanted kind/bug-report triage/accepted area/visualization area/simulation

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

stimcirq requirement introduces circular dependency 22 days ago

help wanted no QC knowledge needed kind/health triage/accepted area/dev area/dependencies priority/before-1.7

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

spin_echoes.ipynb references a removed optimizer 23 days ago

help wanted kind/health triage/accepted good for learning area/docs area/tutorials priority/review

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Regenerate `*.repr` files using updated `proper_repr` for numpy ndarray. 25 days ago

good first issue no QC knowledge needed kind/health triage/accepted

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

`NoiseModelFromGoogleNoiseProperties` should raise an error when simulations use qubits not on the device or an uncompiled circuit 26 days ago

good first issue no QC knowledge needed kind/bug-report triage/accepted

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Make it easier to efficiently construct large circuits from lists of operations 26 days ago

help wanted kind/feature-request triage/accepted area/performance area/operators priority/after-1.7

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Add sparse_matrix method to PauliSum 27 days ago

help wanted kind/feature-request triage/accepted complexity/medium area/paulis area/linalg skill-level/advanced

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

PauliSum reorders the qubits, possibly in a non-deterministic way about 1 month ago

help wanted kind/bug-report triage/accepted area/paulis good for learning priority/after-1.7

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

API documentation drops type hints. about 1 month ago

good first issue no QC knowledge needed kind/health triage/accepted area/gates area/docs

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

JSON backwards compatibility policy and tooling. about 1 month ago

good first issue no QC knowledge needed triage/accepted area/serialization area/json kind/design-issue

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Write test to detect unescaped double-underscore and single-underscore values in docstrings about 1 month ago

good first issue no QC knowledge needed triage/accepted complexity/low area/site area/docs

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Implement a way to identify `CircuitOperations` (operations with loops) about 1 month ago

good first issue kind/feature-request triage/accepted

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Passing a random number generator to simulator/sampler methods should VS maintaing an internal random state about 1 month ago

good first issue triage/accepted kind/design-issue

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Support _circuit_diagram_info_protocol_ for customized rendering of tags in circuit diagrams about 1 month ago

good first issue no QC knowledge needed kind/feature-request triage/accepted area/visualization

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Convert incremental coverage scripts to use json coverage report about 1 month ago

good first issue no QC knowledge needed kind/health triage/accepted

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Improve Serialization performance in Cirq about 1 month ago

good first issue no QC knowledge needed kind/task triage/accepted area/serialization area/performance area/json status/needs-agreed-design

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Circuit._repr_svg_ with nice diagrams for ipython about 1 month ago

help wanted good part-time project kind/feature-request triage/accepted area/circuits area/visualization complexity/medium area/contrib skill-level/beginner area/svg

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Create a more efficient line search strategy about 1 month ago

help wanted good part-time project kind/health triage/accepted area/google complexity/medium area/performance skill-level/expert area/google/placement

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Use `_apply_channel_` when appropriate about 1 month ago

help wanted good part-time project triage/accepted area/channels good for learning kind/design-issue

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

[Routing] Adding use of ancillas. about 1 month ago

help wanted good part-time project kind/task triage/accepted area/devices complexity/high area/routing good for learning

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Compiling: heuristic for compiling 2 qubits gates to the native gateset about 1 month ago

help wanted kind/feature-request triage/accepted area/gate-compilation complexity/high good for learning

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Switch from using globalshift to using individual phases for each eigenspace about 1 month ago

help wanted good part-time project triage/accepted area/gates good for learning kind/design-issue area/eigengate

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Propagate tags to components of CircuitOperation about 1 month ago

help wanted kind/feature-request kind/task triage/accepted skill-level/advanced status/needs-agreed-design area/subcircuits

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Re-use existing tomography utility in T2 experiments about 1 month ago

help wanted kind/bug-report triage/accepted complexity/low skill-level/advanced area/tomography

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Add cirq.sample_final_state_vector method about 1 month ago

help wanted kind/feature-request triage/accepted area/channels area/simulation skill-level/advanced good for learning area/protocols/mixtures

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Need to sweep all files for noninclusive language about 1 month ago

help wanted no QC knowledge needed triage/discuss kind/bug-report skill-level/beginner

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

QubitManager lacks API documentation about 1 month ago

help wanted no QC knowledge needed kind/bug-report triage/accepted skill-level/beginner

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Distance measures for quantum channels about 1 month ago

help wanted kind/feature-request triage/accepted area/gate-compilation

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Redundant implementations of phase damping channel about 1 month ago

help wanted kind/bug-report triage/accepted area/channels

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Channel testing utilities about 1 month ago

help wanted kind/feature-request triage/accepted area/channels area/testing

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Density matrix traces not remaining at 1 after certain operations about 1 month ago

help wanted kind/bug-report triage/accepted area/simulation skill-level/advanced area/density-matrix-simulator

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Deduplicate expectation value code in simulators about 1 month ago

help wanted kind/health triage/accepted complexity/low area/expectation-value skill-level/advanced

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Re-structuring of `mixture` protocol along with serial concatenation about 1 month ago

help wanted kind/task triage/needs-more-evidence area/noise good for learning

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

[XEB] random_quantum_circuit_generation assumes neighboring GridQubits are connected about 1 month ago

help wanted kind/bug-report triage/accepted area/experiments skill-level/advanced area/xeb

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Consider adding numpy number types to TParamVal about 1 month ago

help wanted no QC knowledge needed kind/health triage/accepted area/numpy area/mypy

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

`AttributeError`: 'SingleQubitPauliStringGateOperation' object has no attribute 'pauli_string' in `move_pauli_strings_into_circuit` 3 months ago

good first issue kind/bug-report triage/accepted good for learning

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

EngineProcessor tests are flaky because of datetime.datetime.now() calls 3 months ago

help wanted no QC knowledge needed kind/health triage/accepted

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Support "input" modifier in QASM3 parser 3 months ago

help wanted kind/feature-request triage/accepted area/qasm

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Automate stable release workflow 3 months ago

good first issue no QC knowledge needed triage/discuss kind/health triage/accepted area/releases

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

docs/hardware/pasqal/getting_started.ipynb fails to execute in Google Colab 4 months ago

good first issue kind/bug-report triage/accepted area/docs

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Add hash support to UniformSuperpositionGate 4 months ago

good first issue no QC knowledge needed kind/feature-request triage/accepted priority/p2

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

`is_native_neutral_atom_gate` crashes with `TypeError` when checking unhashable gates 4 months ago

good first issue no QC knowledge needed kind/bug-report triage/accepted area/gates

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

cirq.X and cirq.X**(-1) render the same in text diagrams 4 months ago

good first issue kind/feature-request triage/accepted area/circuits area/visualization

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Fix snippets_test.py::test_can_run_docs_code_snippets 4 months ago

good first issue no QC knowledge needed kind/health triage/accepted skill-level/beginner

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

ClassicalStateSimulator should support CSWAP gate 6 months ago

good first issue no QC knowledge needed kind/feature-request triage/accepted

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Improve `__pow__` for `SingleQubitCliffordGate` and `CliffordGate` class 8 months ago

good first issue kind/feature-request triage/accepted good for learning

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Left-addition of `cirq.GateOperation` with `cirq.Circuit` raises `TypeError` 8 months ago

good first issue kind/bug-report triage/accepted area/gates area/circuits

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Update `QasmUGate` to support symbols in parameters. 10 months ago

good first issue no QC knowledge needed kind/bug-report triage/accepted area/parameters area/interop area/gates area/qasm good for learning

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Optimize circuit construction when Insert is used 10 months ago

good first issue kind/feature-request triage/accepted area/circuits area/performance

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

DensePauliString.__mul__ crashes on index bounds and parity gates 10 months ago

good first issue kind/bug-report area/paulis

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

`align_right` reorders a measurement relative to a classically controlled op that reads its key 10 months ago

good first issue triage/discuss kind/bug-report area/circuits

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

`circuit_from_qasm` reorders a measurement relative to a classically controlled op that reads its key 10 months ago

good first issue triage/discuss kind/bug-report area/circuits

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Update ClassicalStateSimulator to support QubitPermutationGate 10 months ago

good first issue no QC knowledge needed kind/feature-request triage/accepted

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Docs|Tutorials: Inconsistent reference style 11 months ago

good first issue no QC knowledge needed kind/health triage/accepted area/docs area/tutorials

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

pauli_string_measurement_with_readout_mitigation_test is flaky 11 months ago

good first issue kind/bug-report triage/accepted priority/p1

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

DecompositionContext is never None 11 months ago

good first issue no QC knowledge needed triage/accepted

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation

Table about OpenQASM compatibility is out of date 12 months ago

AI Summary: Update the OpenQASM compatibility table on the Cirq documentation website (quantumai.google/cirq/build/interop) to reflect the current capabilities, as documented in recent pull requests such as #6917 and considering the information provided in issue #7516. The table is outdated and needs to be revised to accurately represent the current state of OpenQASM import functionality in Cirq version 1.5.0.

Complexity: 3/5

good first issue kind/bug-report triage/accepted good for learning area/docs

quantumlib/Cirq

5.0K

Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.

Python

#algorithms#api#cirq#google#google-quantum#nisq#python#quantum#quantum-algorithms#quantum-circuit#quantum-circuit-simulator#quantum-computer-simulator#quantum-computing#quantum-development-kit#quantum-information#quantum-programming#quantum-programming-language#quantum-simulation#sdk#simulation