I want to implement the Grover iteration instead of the multi-control qubit implemented as in this picture:
I want to implement them like in this example of five qubits:
I mean how can I decompose them in the circuit (picture1)?
This is my attempt but I failed to get the amplitude increases for the state |1111> (after measuring the wires 1,2,3 and 6)
If you could do it in the Quirk simulator, that will be too helpful.