The known decomposition of toffoli gate that can be used on IBM quantum computer is :
I want to know any other Toffoli gate decompositions that can be used on IBM quantum computer and have a cost less than 15 gates
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$\begingroup$ Hi and welcome to Quantum Computing SE. Do these threads answer your question: quantumcomputing.stackexchange.com/questions/9842/… and quantumcomputing.stackexchange.com/questions/9800/… $\endgroup$– Martin VeselyMar 27, 2020 at 23:55
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1$\begingroup$ Just note that this implementation can be used on any gate-based universal quantum computer, not only on IBM Q. $\endgroup$– Martin VeselyMar 27, 2020 at 23:59
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$\begingroup$ I have checked these threads (before posting) . The second thread says no . The first one gives a gate which they say "not a general toffoli" so it is not preferable to depend on it in my research . Is the gate in my post is the optimal decomposition till now ? Thank you @MartinVesely $\endgroup$– Monica MagdyMar 28, 2020 at 0:46
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$\begingroup$ Yes, the circuit in your question is the optimal implementation of Toffoli gate. $\endgroup$– Martin VeselyMar 28, 2020 at 7:17
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$\begingroup$ Thank you @MartinVesely $\endgroup$– Monica MagdyMar 28, 2020 at 15:37
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