Explore the 12-qubit GHZ entangled state. All 12 qubits are maximally entangled, creating a quantum state where measuring one qubit instantly determines the state of all others.
State: |GHZ₁₂⟩ = (|000000000000⟩ + |111111111111⟩) / √2
Hardware: Heron r2 v1.3.37 (156 qubits)
Job ID: d5gs5mkpe0pc73alki40
What does this mean?
All 12 qubits are locked together in two possibilities at once — either every one of them reads 0, or every one of them reads 1, never a mix. Measure just one qubit and you instantly know the state of the other eleven, even though nothing traveled between them. That instant, all-or-nothing correlation is what makes GHZ states useful for spotting eavesdroppers: any outside interference breaks the lock-step and shows up as a detectable error.