1997/05/09 by Tooru Taniguchi
Physics and Astronomy · #cond-mat
published as Physics Letters A, 245 (1998) p279-p284
arxiv created 1997/05/09 · arxiv updated 2009/11/30
We give a method of describing thermodynamical transport phenomena, based on a quantum scattering theoretical approach. We consider a quantum system of particles connected to thermodynamical reservoirs by leads. The effects of the reservoirs are imposed as an asymptotic condition at the end of the leads. We derive an expression for a current of a conserved quantity, which is independent of the details of the Hamiltonian operator. The Landauer formula and its generalizations are derived from this method.