Noise and driving induced Brownian heat current in the Frenkel-Kontorova lattices

摘要: Abstract We investigate Brownian heat current induced by noise and driving in the conduction of Frenkel–Kontorova (FK) lattices, whose two ends contact respectively with baths temporally. Our numerical results indicate that thermal system versus environmental reference temperature exhibits peaks symmetric cases, i.e., SR. In asymmetric phenomenon also takes place, depending on on-site potentials atoms exerted periodic signal, but disappears for harmonic lattices. Moreover, its intrinsic physical mechanism is analyzed detail. The above play important roles controlling nonlinear