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Optimal block-tridiagonalization of matrices for coherent charge transport

Wimmer, Michael and Richter, Klaus (2009) Optimal block-tridiagonalization of matrices for coherent charge transport. Journal of Computational Physics 228, p. 8548. (Submitted)

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Other URL: http://dx.doi.org/10.1016/j.jcp.2009.08.001, http://arxiv.org/abs/0806.2739v1


Abstract

Numerical quantum transport calculations are commonly based on a tight-binding formulation. A wide class of quantum transport algorithms requires the tight-binding Hamiltonian to be in the form of a block-tridiagonal matrix. Here, we develop a matrix reordering algorithm based on graph partitioning techniques that yields the optimal block-tridiagonal form for quantum transport. The reordered ...

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Item Type:Article
Date:2009
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
Projects:Graduiertenkolleg Nichtlinearität und Nichtgleichgewicht, SFB 689: Spinphänomene in reduzierten Dimensionen
Identification Number:
ValueType
0806.2739v1arXiv ID
10.1016/j.jcp.2009.08.001DOI
Subjects:500 Science > 530 Physics
Status:Submitted
Refereed:No, this version has not been refereed yet (as with preprints)
Created at the University of Regensburg:Yes
Owner: Timo Hartmann
Deposited On:25 May 2009 13:19
Last Modified:04 May 2010 11:55
Item ID:7828
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