> So you believe macroscopic quantum phenomena is possible in this reality?
Yes.
Ignoring superconductors, Josephson effect, superfluity, Hall effect in holes, giant magnetoresistance, ... and that every single LED use a lot of QM effects.
I guess you want to see interference in a macroscopic object. I think that the current record is hold by someone that measured interference patterns using a ray of molecules with 60 atoms. https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.12... It's difficult to scale this up, because it's difficult to make a grid that is so fine and reduce noise. In spite it should be possible, it's still a long way until someone make an experiment with a macroscopic object.
Yes.
Ignoring superconductors, Josephson effect, superfluity, Hall effect in holes, giant magnetoresistance, ... and that every single LED use a lot of QM effects.
I guess you want to see interference in a macroscopic object. I think that the current record is hold by someone that measured interference patterns using a ray of molecules with 60 atoms. https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.12... It's difficult to scale this up, because it's difficult to make a grid that is so fine and reduce noise. In spite it should be possible, it's still a long way until someone make an experiment with a macroscopic object.