How are Hadamard gates made and physically operated?
There are thousands of articles, books and web sites describing the Hadamard Gate from a theoretical point of view.
But I haven’t been able to find any picture about a real implementeation of a Hadamard Gate on superconducting circuits nor any article describing how to make one.
Only some articles speaking about optical implementation of Hadamard gates:
Maybe the following is the only one I’ve found with some information, though quite theoretical too:
How are Hadamard gates fabricated (or created in the laboratory) and operated?