Articles dans des revues à comité de lecture
|Fourier's law on a one-dimensional optical random lattice|
|Platini T., Harris R. J., Karevski D.|
|J. Phys. A: Math. Theor. (IOPSELECT) 43 (2010) 135003|
|DOI : 10.1088/1751-8113/43/13/135003|
|ArXiv : arxiv:0811.3079 [PDF]|
We study the transport properties of a one-dimensional hard-core bosonic lattice gas coupled to two particle reservoirs at different chemical potentials which generate a current flow through the system. In particular, the influence of random fluctuations of the underlying lattice on the stationary-state properties is investigated. We show analytically that the steady-state density presents a linear profile. The local steady-state current obeys the Fourier law j = −κ(τ)∇n where τ is a typical timescale of the lattice fluctuations and ∇n is the density gradient imposed by the reservoirs.