Module circuit_optimizer 

Circuit optimization framework for quantum circuits

This module provides a comprehensive framework for optimizing quantum circuits through various transformation passes that preserve circuit equivalence while reducing gate count, depth, and execution time.

Optimization Passes

• Gate Cancellation: Remove inverse gate pairs (H-H, X-X, CNOT-CNOT)
• Gate Fusion: Combine adjacent single-qubit rotations
• Gate Commutation: Reorder gates using commutation rules
• Template Matching: Replace gate sequences with optimized equivalents
• Two-Qubit Reduction: Minimize expensive two-qubit gates

Example

use quantrs2_sim::circuit_optimizer::{CircuitOptimizer, OptimizationPass};

let optimizer = CircuitOptimizer::new()
    .with_pass(OptimizationPass::CancelInverses)
    .with_pass(OptimizationPass::FuseRotations)
    .with_pass(OptimizationPass::CommutativeReordering);

let optimized_circuit = optimizer.optimize(&circuit)?;

Structs

Circuit

Quantum circuit

CircuitOptimizer

Circuit optimizer

Gate

Quantum gate instruction

OptimizationStats

Optimization statistics

Enums

GateType

Quantum gate type

OptimizationPass

Optimization pass types