A simulation study of energy transport in the Hamiltonian XY-model

Details A simulation study of energy transport in the Hamiltonian XY-model A simulation study of energy transport in the Hamiltonian XY-model

2005-05-11

arxiv.org/abs/cond-mat/0505279v1

Physics

Condensed Matter

Statistical Mechanics

Submitted to Journal of Statistical Mechanics: theory and experiment

Scientific paper

10.1088/1742-5468/2005/05/P05006

The transport properties of the planar rotator model on a square lattice are analyzed by means of microcanonical and non--equilibrium simulations. Well below the Kosterlitz--Thouless--Berezinskii transition temperature, both approaches consistently indicate that the energy current autocorrelation displays a long--time tail decaying as t^{-1}. This yields a thermal conductivity coefficient which diverges logarithmically with the lattice size. Conversely, conductivity is found to be finite in the high--temperature disordered phase. Simulations close to the transition temperature are insted limited by slow convergence that is presumably due to the slow kinetics of vortex pairs.

Affiliated with

Also associated with

No associations

Rating

A simulation study of energy transport in the Hamiltonian XY-model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A simulation study of energy transport in the Hamiltonian XY-model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A simulation study of energy transport in the Hamiltonian XY-model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-73077