Regensburg 2007 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 8: Quantum dynamics, decoherence and quantum information

DY 8.1: Vortrag

Montag, 26. März 2007, 16:15–16:30, H2

Normal and Ballistic Transport in Coupled Spin Chains — •Hendrik Weimer, Mathias Michel, and Günter Mahler — Institut für Theoretische Physik I, Universität Stuttgart

We consider a three-dimensional model of coupled spin chains. The interaction inside the chains is a Heisenberg coupling while the interaction between the chains is random. In the one-particle excitation band we obtain ballistic transport along the spin chains and normal transport in the perpendicular direction. The numerical solution of the time-dependent Schrödinger equation confirms these results.