  In his comment, Dhar (cond-mat/0106349) claims that the existence and
uniqueness of a nonequilibrium stationary state has been proved by Lebowitz et
al. We should point out that our observation does not contradict the proof.
They have only proved that when a (mass) disordered harmonic chain is placed in
contact with stochastic reservoirs of the Langevin type, a nonequilibrium
stationary state can be reached. However, they didn't prove the existence and
uniqueness of the nonequilibrium stationary state for the general case, namely,
when the chain is in contact with general thermostated reservoirs (see Bonneto
et al. math-ph/0002052).
