Multi-qubit Phase
Learn the concept of the multi-qubit phase.
What if we have multiple qubits? The following equation denotes the state of a two-qubit system.
The two-qubit system can be in four different states. Each state has an amplitude, too.
We’ve already specified a two-qubit system two and the Bloch spheres side by side in the lesson Two Different Qubit States. Qubit 0 is in state and qubit 1 is in state .
Let’s have a look at the phases of the four states of this system.
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