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

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

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