Qiskit

Overview

Qiskit is an open-source quantum computing framework. Build quantum circuits, optimize for hardware, execute on simulators or real quantum computers, and analyze results. Supports IBM Quantum (100+ qubit systems), IonQ, Amazon Braket, and other providers.

Version note: Examples target Qiskit SDK 2.x (qiskit>=2,<3, Python 3.10+) and qiskit-ibm-runtime 0.30+. Two breaking changes drive the patterns below: Qiskit 2.0 removed qiskit.pulse and Qiskit 1.0 removed qiskit.tools.jupyter, and the legacy qiskit_ibm_runtime.Options class plus the channel="ibm_quantum" value are both gone (use V2 options + channel="ibm_quantum_platform").

Key Features:

• Configurable transpilation with multiple optimization levels
• Circuit optimization that reduces two-qubit gate counts
• Backend-agnostic execution (local simulators or cloud hardware)
• Comprehensive algorithm libraries for optimization, chemistry, and ML

Quick Start

Installation