primitives

Primitives are the fundamental building blocks for executing quantum circuits. Qiskit provides two main primitives: Sampler (for measuring bitstrings) and Estimator (for computing expectation values).

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A skill that teaches Claude Code to do scientific tasks well. It is packaged knowledge the model uses whenever it is relevant.

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Install (Claude Code)

mkdir -p .claude/skills/primitives && curl -fsSL https://doutorai.pt/data/lib/skills__primitives.md -o .claude/skills/primitives/SKILL.md

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Content

# Qiskit Primitives

Primitives are the fundamental building blocks for executing quantum circuits. Qiskit provides two main primitives: **Sampler** (for measuring bitstrings) and **Estimator** (for computing expectation values).

## Primitive Types

### Sampler
Calculates probabilities or quasi-probabilities of bitstrings from quantum circuits. Use when you need:
- Measurement outcomes
- Output probability distributions
- Sampling from quantum states

### Estimator
Computes expectation values of observables for quantum circuits. Use when you need:
- Energy calculations
- Observable measuremen

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