# How can I find the fidelity of preparation?

I want to know the fidelity (or error rate) of the preparation ($$|0\rangle$$) How can I have it?

• Fidelity is a measure of the "closeness" of two quantum states. You need another state to compared your $|0 \rangle$ to. – Victory Omole Feb 27 at 1:43
• @VictoryOmole Thank you for the answer, but I mean the fidelity of the preparation operation (|0>) of IBMQ. As you know, in the IBM Q website, the error rates of all the operations are posted except the preparation. Therefore, I posted this question. I want to know how much the initialized state is closed to |0>. – Yongsoo Feb 27 at 4:42