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enter image description here

I want to decompose an 8-control qubit gate like the one in the picture on the right using Qiskit, similar to the decomposition shown. To do this, I need a C7XGate for 7 control bits, but it seems that Qiskit only supports up to a C4XGate. What should I do?

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For multi-controlled X gate, use Qiskit's class MCXGate which can be added to your circuit as follows:

circ.mcx(range(7), 7)
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  • $\begingroup$ I got it! Thank you sir $\endgroup$
    – junghyunHa
    Commented May 2 at 5:23

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