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It supports common single-, two-, and three-qubit gates (including parameterized gates), measurement (shot-based sampling), state resetting, and basic circuit visualization.\n\n## Features\n\n- **Statevector Simulation**: Maintains a complex-valued statevector of size ( 2^n ).\n- **Common Gates**: X, Y, Z, H, S, T, plus multi-qubit gates like CNOT, SWAP, Toffoli, Fredkin, etc.\n- **Parameterized Gates**: General single-qubit rotation ( U(θ, φ, λ) ).\n- **Controlled Gates**: Automatically construct controlled versions of single-qubit gates.\n- **Circuit Visualization**: Generate a diagram of applied operations with `.draw()`.\n- **Measurement**: Returns shot-based measurement outcomes from the final state.\n- **Lightweight**: Only requires [NumPy](https://numpy.org). For plotting, install optional [matplotlib](https://matplotlib.org).\n\n## Installation\n\nInstall Qubit Simulator via pip:\n\n```bash\npip install qubit-simulator[visualization]\n```\n\n## Usage\n\n### Initializing the Simulator\n\nCreate a simulator with a specified number of qubits:\n\n```python\nfrom qubit_simulator import QubitSimulator\n\nsim = QubitSimulator(num_qubits=2)\n```\n\n### Applying Gates\n\nApply various quantum gates to the qubits:\n\n```python\nsim.h(0)      # Hadamard gate\nsim.t(0)      # π/8 gate\nsim.cx(0, 1)  # Controlled-Not gate\n```\n\n### Custom Gates\n\nDefine and apply custom gates using angles:\n\n```python\nsim.u(1.2, 3.4, 5.6, 1)  # Arbitrary single-qubit gate\n```\n\n### Circuit Drawing\n\nGet a drawing of the circuit:\n\n```python\nsim.draw()\n```\n\n![Circuit Drawing](https://github.com/user-attachments/assets/2e6dbbc3-39e0-4d4f-8c43-c6f2ba83e121)\n\n### Measurements\n\nMeasure the state of the qubits:\n\n```python\nprint(sim.run(shots=100))\n```\n\n```plaintext\n{'000': 49, '001': 1, '100': 1, '101': 49}\n```\n\n### Statevector Plot\n\nShow the amplitude and phase of all quantum states:\n\n```python\nsim.state()\n```\n\n![Statevector Bar Chart](https://github.com/user-attachments/assets/f883b77f-1dc5-4236-8aed-0d67f8305e12)\n\n## Testing\n\nTests are included in the package to verify its functionality and provide more advanced examples:\n\n```shell\npython3 -m pytest tests/\n```\n\n## License\n\nThis project is licensed under the MIT License.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsplch%2Fqubit-simulator","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsplch%2Fqubit-simulator","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsplch%2Fqubit-simulator/lists"}