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Beginner2 qubitspar 3

The other Bell state

Same idea, opposite correlation. Half the shots must read |01⟩ and half |10⟩ — the two qubits must always DISAGREE. |00⟩ and |11⟩ must never appear.

Stuck on the concept? Read Entanglement.

Target
What you are aiming at100 %
|00⟩
|01⟩
|10⟩
|11⟩
Your circuit
What you are producing right now100 %
|00⟩
|01⟩
|10⟩
|11⟩
Gates
Single qubit
Two qubit
Three qubit
Other

Select a gate to see what it does, then tap a wire — or Tab to a wire and press Enter — to place it.

Circuit
Gates
0
Par
3
Pick a gate from the palette to start building.

Pick a gate, then tap a cell — or Tab into the grid and use the arrow keys and Enter — to place it.

Practice more like this

Generate a fresh target state drill at this difficulty. Every generated puzzle is verified solvable by execution before you see it — the generator runs its own solution through the same simulator and grader that will judge yours.