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How to estimate the complexity of a variational quantum circuit? For example, I have a quantum circuit of $n$ qubits that uses alternating operators to build the network and train it. So what is the complexity of this circuit?

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  • $\begingroup$ To be more specific, what type of complexity are you interested in — e.g. gate complexity, qubit complexity? $\endgroup$
    – Greenstick
    Commented Apr 12, 2022 at 1:16
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    $\begingroup$ The complexity I need is a measure of quantum advantage. In addition, I am also curious about various complexities. What is the meaning of indicators such as gate complexity? $\endgroup$ Commented Apr 12, 2022 at 2:21

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