  A generalized Schwinger boson representation is proposed to describe the
two-dimensional SU(4) symmetric spin-orbital quantum antiferromagnet. A uniform
mean field solution gives rise to an antiferromagnetic long range ordered state
with a small staggered magnetization $m_{s}=0.07566$, and the recent quantum
Monte Carlo simulations on rather large lattice sizes have provided strong
evidence to support these mean field results.
