  In this work we study the particle conductance of a strongly interacting
Fermi gas through a quantum point contact. With an atom-molecule two-channel
model, we compute the contribution to particle conductance by both the
fermionic atoms and the bosonic molecules using the Keldysh formalism. Focusing
on the regime above the Fermi superfluid transition temperature, we find that
the fermionic contribution to the conductance is reduced by interaction
compared with the quantized value for the non-interacting case; while the
bosonic contribution to the conductance exhibits a plateau with non-universal
values that is larger than the quantized conductance. This feature is
particularly profound at temperature close to the superfluid transition. We
emphasize that the enhanced conductance arises because of the bosonic nature of
closed channel molecules and the low-dimensionality of the quantum point
contact.
