4 papers
A Symmetry Property of Momentum Distribution Functions in the Nonequilibrium Steady State of Lattice Thermal Conduction
Akira Ueda, Shinji Takesue
We study a symmetry property of momentum distribution functions in the steady state of heat conduction. When the equation of motion is symmetric under change of signs for all dynam…
Heat conduction in one-dimensional lattice dynamical systems far from equilibrium
Akira Ueda, Shinji Takesue
We study heat conduction in one dimensional lattice dynamical systems far from equilibrium. The Fermi-Pasta-Ulam model and the model are numerically compared to elucidate dif…
Power-law behavior in the power spectrum induced by Brownian motion of a domain wall
Shinji Takesue, Hisao Hayakawa, Tetsuya Mitsudo
We show that Brownian motion of a one-dimensional domain wall in a large but finite system yields a power spectrum. This is successfully applied to the totally asymmetri…
Energy Transport in the Integrable System in Contact with Various Types of Phonon Reservoirs
K. Saito, S. Takesue, S. Miyashita
We study how energy transport in an integrable system is affected by the spectral densities of heat reservoirs. The model investigated here is the quantum harmonic chain whose both…