## Is a qubit always in superposition?

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I am introduced to ancilla qubits which are usually initialized to $$\vert 0 \rangle$$. It seems that an ancilla qubit is equivalent to the $$0$$ bit in classical computing as it will evaluate to $$\vert 0 \rangle$$ 100% of the time. My question is that can I conclude any qubit will always be in superposition regardless of the probabilities of $$\alpha$$ and $$\beta$$ since $$\vert 0 \rangle + 0\vert 1 \rangle = \vert 0 \rangle$$ and $$0\vert 0 \rangle + \vert 1 \rangle = \vert 1 \rangle$$? How about physically, are qubits prepared according to some procedure that differ if it will be initialized to $$\vert 0 \rangle$$ or $$\vert 1 \rangle$$ or in superposition?

Edit: this is a related comment but it doesn't answer my question regarding if the process of physically preparing qubits different from non-entangled qubits vs entangled ones.