Comment on ``Can Disorder Induce a Finite Thermal Conductivity in 1D Lattices?''

Abstract

In a recent paper [Phys. Rev. Lett. 86, 63 (2001)], Li et al have reported that the nonequilibrium heat conducting steady state of a disordered harmonic chain is not unique. In this comment we point out that for a large class of stochastic heat baths the uniqueness of the steady state can be proved, and therefore the findings of Li et al could be either due to their use of deterministic heat baths or insufficient equilibration times in the simulations. We give a simple example where the uniquness of the steady state can be explicitly demonstrated.

1 page, 1 figure, accepted for publication in Phys. Rev. Lett

References in corpus (1)

• Can disorder induce a finite thermal conductivity in 1D lattices?

Cited by in corpus (6)

• Heat Transport in low-dimensional systems
• Effect of phonon-phonon interactions on localization
• Heat conduction in 1D lattices with on-site potential
• Heat conduction in deformable Frenkel-Kontorova lattices: thermal conductivity and negative differential thermal resistance
• Heat Conduction in two-dimensional harmonic crystal with disorder
• Thermal conductivity in 1d: disorder-induced transition from anomalous to normal scaling