THE CHAIN REACTION ⛓️
H on qubit 0, CNOT 0→1, then CNOT 1→2. The middle qubit passes the correlation along like a rumour.
Only 000 and 111 survive. Now move the H to the middle qubit and see what changes — post both.
H on qubit 0, CNOT 0→1, then CNOT 1→2. The middle qubit passes the correlation along like a rumour.
Only 000 and 111 survive. Now move the H to the middle qubit and see what changes — post both.
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