Module pattern 

Pattern matching for quantum expressions.

This module provides utilities for recognizing and extracting common patterns in quantum computing expressions.

Enums

Pattern

A pattern that can match against expressions.

QuantumGatePattern

Recognize common quantum gate patterns

VariationalPattern

Recognize variational quantum circuit parameter patterns

Functions

is_hermitian_form

Check if an expression represents a Hermitian operator (A = A†)

is_projector_form

Check if an expression is a projector (P² = P)

is_pure_imaginary

Check if an expression is a pure imaginary number (i * real)

is_qaoa_parameter

Check if expression matches a QAOA parameter

is_rotation_gate

Check if an expression is a rotation gate form: exp(-i * θ * G / 2) Returns the angle and generator if matched

is_unit_complex_form

Check if an expression is a unit complex number (|z| = 1)

is_vqe_parameter

Check if expression matches a VQE parameter pattern

match_pattern

Match a pattern against an expression

recognize_gate_pattern

Try to recognize a quantum gate from its matrix expression

Type Aliases

Captures

Result of pattern matching - captured expressions