Quantum.SIG examples

import { QuantumCircuit, GroverSearch } from '@quantum-sig/core';

// Search for element #23 in a database of 32 items
async function runGroverSearch() {
  const circuit = QuantumCircuit.builder()
    .addQubits(5) // 5 qubits for 32 possible states
    .applyHadamardToAll(); // Create uniform superposition

  const database = new Array(32).fill(0);
  database[23] = 1; // Mark position #23 as the target

  const searcher = new GroverSearch(database);
  await searcher.search(circuit);

  const result = circuit.measureAll();
  document.getElementById('search-result').innerText = 
    `Found element at position ${result.bitString} (marked item ${database[result.bitString] ? '✓' : '✗'})`;
  updateBars(result.probabilities);
}

runGroverSearch();