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Article overview
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Normal Transport Behavior in Finite One-Dimensional Chaotic Quantum Systems | | Robin Steinigeweg
; Jochen Gemmer
; Mathias Michel
; | | Date: |
3 Jun 2006 | | Subject: | Statistical Mechanics | | Abstract: | We investigate the transport of energy, magnetization, etc. in several finite one-dimensional (1D) quantum systems only by solving the corresponding time-dependent Schroedinger equation. We explicitly renounce on any other transport-analysis technique. Varying model parameters we find a sharp transition from non-normal to normal transport and a transition from integrability to chaos, i.e., from Poissonian to Wigner-like level statistics. These transitions always appear in conjunction with each other. We investigate some rather abstract design models and a (locally perturbed) Heisenberg spin chain. | | Source: | arXiv, cond-mat/0606083 | | Services: | Forum | Review | PDF | Favorites | |
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