Qubit Mapper

Purpose

Provides expert guidance on mapping logical qubits to physical hardware while respecting connectivity constraints and minimizing SWAP overhead.

Capabilities

• Initial qubit placement
• SWAP gate insertion
• Routing optimization algorithms
• Topology-aware compilation
• Noise-aware placement
• Heavy-hex and grid topology support
• Dynamic circuit routing
• Parallel SWAP optimization

Usage Guidelines

1. Topology Analysis: Understand target hardware connectivity graph
2. Initial Placement: Use heuristics for initial logical-physical mapping
3. Routing: Insert SWAPs to enable non-native interactions
4. Optimization: Minimize SWAP count and circuit depth
5. Noise Consideration: Prefer high-fidelity qubits and links

Tools/Libraries

• Qiskit
• pytket (t|ket>)
• Cirq
• BQSKit
• NetworkX