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Cirq Quantum Circuit Assistant

A skill for designing, simulating, and running quantum circuits with Google's Cirq framework.

Dev & CodingAdvanced★ 33,030⑂ 3,248AI score 9/10Last updated: Aug 9, 2026

What it does

  • Provides ready-to-run patterns for building, simulating, and optimizing quantum circuits with Cirq (Google Quantum AI's framework).
  • Covers state-vector and density-matrix simulation, symbolic parameter sweeps, noise channels and noise models, and transformer-based circuit optimization.
  • Documents hardware execution and authentication for Google (Sycamore, Weber, Willow), IonQ, Azure Quantum, AQT, and Pasqal backends.
  • Includes variational algorithm templates (VQE/QAOA/QPE), ReCirq experiment structure, best practices, and troubleshooting for deep circuits, memory limits, and device validation errors.

Who it's for

  • Researchers and grad students prototyping quantum algorithms in Python.
  • Developers who need to submit jobs to Google Quantum AI or IonQ/Quantinuum hardware.
  • Engineers studying NISQ noise effects and error mitigation quantitatively.

Example uses

  1. "Build a 2-qubit Bell state circuit, sample 1000 shots, and print the histogram" → complete code from circuit to results.
  2. "Compare output fidelity across depolarizing probabilities from 0 to 0.1" → generates a noise comparison study script.
  3. "Compile my circuit to the Weber processor gateset with SWAP routing" → transformer pipeline plus device validation steps.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/K-Dense-AI/scientific-agent-skills/HEAD/skills/cirq/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on AI Skill Mart.
Copy the skills/cirq folder from the GitHub repo K-Dense-AI/scientific-agent-skills into my ~/.claude/skills/cirq/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/K-Dense-AI/scientific-agent-skills.git && mkdir -p ~/.claude/skills && cp -r scientific-agent-skills/skills/cirq ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the skill repository: git clone https://github.com/K-Dense-AI/scientific-agent-skills.git
  3. Create the skills directory: mkdir -p ~/.claude/skills
  4. Copy just this skill: cp -r scientific-agent-skills/skills/cirq ~/.claude/skills/
  5. Verify that ~/.claude/skills/cirq/SKILL.md and its references/ folder came along.
  6. In a Python 3.11+ environment install the library: uv pip install "cirq==1.6.1" (or pip install cirq).
  7. Restart Claude Code and try a prompt like "use Cirq to build a Bell state circuit" to confirm the skill triggers.
View source on GitHub ↗License: MIT