Thermal transport in long-range interacting Fermi-Pasta-Ulam chains
Jianjin Wang, Sergey V. Dmitriev, Daxing Xiong
Abstract
This paper reveals an intrinsic feature of thermal transport underlying a long-range interacting Fermi-Pasta-Ulam chain, showing a high length-divergence of thermal conductivity. Its mechanism is related to a new heat diffusion process, responsible by the peculiar traveling discrete breathers' dynamics and their weak interactions, resulted from system's weaker chaotic property.
Topics & Concepts
BreatherThermal conductivityChaoticFermi Gamma-ray Space TelescopeStatistical physicsThermalRange (aeronautics)Divergence (linguistics)DiffusionPhysicsChain (unit)Condensed matter physicsChemical physicsMaterials scienceThermodynamicsQuantum mechanicsComputer scienceNonlinear systemComposite materialPhilosophyLinguisticsArtificial intelligenceNonlinear Photonic SystemsThermal properties of materialsStrong Light-Matter Interactions