Comment Comment by nextaccountic What I'm asking is, everyday materials usually obey the Pauli exclusion principleWhy is the situation where an whole atom doesn't obey the Pauli exclusion principle much more exotic and unusual?I mean, take a look at the wikipedia pages https://en.wikipedia.org/wiki/Composite_boson and https://en.wikipedia.org/wiki/Composite_fermion - when one talks about composite bosons, it's exotic materials like superfluid helium, bose-einstein condensates, cooper pairs.Since it's only a even/odd difference, I would expect that roughly half materials form composite bosons, and the other half form composite fermions, but this doesn't seem to be the case. parent nextaccountic 5 years ago
Why is the situation where an whole atom doesn't obey the Pauli exclusion principle much more exotic and unusual?
I mean, take a look at the wikipedia pages https://en.wikipedia.org/wiki/Composite_boson and https://en.wikipedia.org/wiki/Composite_fermion - when one talks about composite bosons, it's exotic materials like superfluid helium, bose-einstein condensates, cooper pairs.
Since it's only a even/odd difference, I would expect that roughly half materials form composite bosons, and the other half form composite fermions, but this doesn't seem to be the case.