From the course: Quantum Computing Fundamentals
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Represent entangled qubits
From the course: Quantum Computing Fundamentals
Represent entangled qubits
- The recipe to create an entangled pair of qubits is fairly simple. It only requires two ingredients. Starting with both of our qubits in the |0> basis state, I'll apply a Hadamard gate to spin my qubit into super position. - And then I'll apply a CNOT gate with Baron's qubit as a control to decide whether or not to flip my target qubit. - The combined quantum situation we've just created is what's known as a Bell state, which is the simplest and most extreme example of quantum entanglement. - Since our entangled qubits can no longer be described independently, the states you're seeing on our block spheres are not really correct, so to visually indicate that our qubits are entangled, we'll use this phi symbol, which represents a Bell state. - Now that we're entangled, if we measure my qubit first, (Velcro rustles) and see that its state is 0- - Then that means my target qubit is unchanged. I'm still in the…
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