cirqlisted
Install: claude install-skill Yuuqq/research-grade-skills
# Cirq - Quantum Computing with Python
Cirq is Google Quantum AI's open-source framework for designing, simulating, and running quantum circuits on quantum computers and simulators.
## Installation
```bash
uv pip install cirq
```
For hardware integration:
```bash
# Google Quantum Engine
uv pip install cirq-google
# IonQ
uv pip install cirq-ionq
# AQT (Alpine Quantum Technologies)
uv pip install cirq-aqt
# Pasqal
uv pip install cirq-pasqal
# Azure Quantum
uv pip install azure-quantum cirq
```
## Quick Start
### Basic Circuit
```python
import cirq
import numpy as np
# Create qubits
q0, q1 = cirq.LineQubit.range(2)
# Build circuit
circuit = cirq.Circuit(
cirq.H(q0), # Hadamard on q0
cirq.CNOT(q0, q1), # CNOT with q0 control, q1 target
cirq.measure(q0, q1, key='result')
)
print(circuit)
# Simulate
simulator = cirq.Simulator()
result = simulator.run(circuit, repetitions=1000)
# Display results
print(result.histogram(key='result'))
```
### Parameterized Circuit
```python
import sympy
# Define symbolic parameter
theta = sympy.Symbol('theta')
# Create parameterized circuit
circuit = cirq.Circuit(
cirq.ry(theta)(q0),
cirq.measure(q0, key='m')
)
# Sweep over parameter values
sweep = cirq.Linspace('theta', start=0, stop=2*np.pi, length=20)
results = simulator.run_sweep(circuit, params=sweep, repetitions=1000)
# Process results
for params, result in zip(sweep, results):
theta_val = params['theta']
counts = result.histog