I’m not sure what you mean. In my head I thought wave functions describe atomic things rather than macroscopic things. I thought that wave-particle duality could be measured for atoms/particles but not for macroscopic objects because their wavelengths are too small so their wave properties can’t be measured…but I am probably wrong 🙂
Interesting. Well, on the whole we don’t see quantum mechanics take hold on the macroscopic scale because of the wavelengths we use to probe. However, some things do exhibit quantum properties – for example superfluid movement, and we can explain lasers, or what we observe lasers do, with quantum mechanics – whether or not this is a “bulk” property of the object or not isn’t clear to me – I’d assume not considering the quantum case only applies in the quantum realm – in reality we are a many body system – but again, not too sure on that!