I don't think a "hello world" type of program/circuitry(?) needs to be unique to a quantum computer. It just needs to be expressible with a quantum circuit. Si

I don't think a "hello world" type of program/circuitry(?) needs to be unique to a quantum computer. It just needs to be expressible with a quantum circuit. Similar to how you can have hello world in both ruby and python, but arrive at them with different syntax and compilers.