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Measuring Entangled Qubits
Measuring Entangled Qubits
Select one of four input qubit states, each of which represents one of the Bell basis states, a type of entangled qubit pair. The quantum circuit performs a CNOT operation on the entangled pair of qubits, and then a Hadamard operation on the upper qubit. This yields a pair of classical bits, which can then be measured to identify which of the four Bell basis qubit states were input to the circuit.