In this work we calculate the functional generator of the Green's functions
of the Kalb-Ramond field in 3+1 dimensions. We also calculate the functional
generator, and corresponding Casimir energy, of the same field when it is
submitted to boundary conditions on two parallel planes. The boundary
conditions we consider can be interpreted as a kind of conducting planes for
the field in compearing with the Maxwell case. We compare our result with the
standard ones for the scalar and Maxwell fields.Comment: 10 revtex pages, to be submitted for publication, minor change
