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Abstract
We study the electronic transport in an infinite one-dimensional Hubbard chain, driven by a homogeneous electric field. The physical chain is coupled to fermionic bath chains in order to account for dissipation and to prevent the occurrence of Bloch oscillations. The steady-state current is computed in the frame of Keldysh Green's functions in cluster perturbation theory. The current characteristics are dominated by resonant-tunneling-like structures, which can be traced back to Wannier-Stark resonances due to antiferromagnetic correlations. The same current characteristic occurs in a noninteracting Wannier-Stark model with alternating on-site energies. Nonlocal effects of the self-energy can be accounted for the observed physical behavior.
Original language | English |
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Pages (from-to) | 125149 |
Number of pages | 1 |
Journal | Physical Review E |
Volume | 92 |
Issue number | 12 |
DOIs | |
Publication status | Published - 1 Sept 2015 |
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Dive into the research topics of 'Current characteristics of a one-dimensional Hubbard chain: Role of correlation and dissipation'. Together they form a unique fingerprint.Projects
- 1 Finished
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FWF - TOPOMAT - Topological states of matter from first principles
1/11/14 → 31/10/22
Project: Research project