Bell State Simulator | Turn lessons into working experiments

Starter code

module bell_state;

fn main() {
  let q = qreg[2];
  H(q[0]);
  CNOT(q[0], q[1]);
  let a: Bit = measure(q[0]);
  let b: Bit = measure(q[1]);
  return (a, b);
}

Expected output

Two-qubit register initialized

H applied to q[0]

CNOT applied from q[0] to q[1]

Measurements trend toward 00 or 11

Debugging checklist

Run the starter code

Inspect state probabilities

Run multiple samples

Explain why 01 and 10 should be rare

Extension challenge

Add an X gate before CNOT and explain how the correlated outcomes change.