0
$\begingroup$

The introduction to this paper about bosonic atoms expanding in an optical lattice says the following:

enter image description here

Are hard-core bosons mapped to spinless fermions?

Because this link shows the mapping procedure with spin-$1/2$...

$\endgroup$

1 Answer 1

1
$\begingroup$

So, I found the answer.

The distinction to be made is between a spin model and actuals spin particles.

1D hard core bosons act as if they were fermions (they cannot have the same quantum numbers and therefore 'repel'), but they do not have spin so they correspond to spinless fermions.

This however corresponds to a spin $1/2$ model, where there are only 2 states occupied, 'up' or 'down'.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.