cirq

1# Cirq - Quantum Computing with Python
2 
3Cirq is Google Quantum AI's open-source framework for designing, simulating, and running quantum circuits on quantum computers and simulators.
4 
5## When to Use This Skill
6 
7Use this skill when:
8- Building, simulating, or optimizing NISQ circuits in Python
9- Running jobs on Google Quantum AI processors (via `cirq-google`) or partner backends (IonQ, Azure Quantum, AQT, Pasqal)
10- Modeling noise, compiling to hardware gatesets, or designing characterization experiments
11- Using parameter sweeps, transformers, or the ReCirq experiment patterns
12 
13For IBM hardware use **qiskit**; for quantum ML with autodiff use **pennylane**; for physics simulations use **qutip**.
14 
15## Installation
16 
17Examples target **Cirq 1.7.0** on Python 3.11+. Keep Cirq vendor packages on the matching release; independently versioned integrations such as Azure Quantum need their own compatibility check.
18 
19```bash
20uv pip install "cirq-core==1.7.0"
21# Optional OpenQASM import dependency
22uv pip install ply
23```
24 
25For hardware integration (pin matching versions for reproducibility):
26```bash
27# Google Quantum Engine (requires approved GCP project access)
28uv pip install "cirq-google==1.7.0"
29 
30# IonQ
31uv pip install "cirq-ionq==1.7.0"
32 
33# AQT (Alpine Quantum Technologies)
34uv pip install "cirq-aqt==1.7.0"
35 
36# Pasqal
37uv pip install "cirq-pasqal==1.7.0"
38 
39# Azure: use a SEPARATE environment; its current extras require Cirq <1.7.
40uv pip install "qdk[azure,cirq]==1.32.3" "azure-quantum==3.13.0"
41```
42…