Strong enhancement of transport by interaction on contact links
| Autor: | Dan Bohr, Peter Schmitteckert |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Physics
CONDUCTANCE Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Conductance Coulomb blockade FOS: Physical sciences Scale (descriptive set theory) Fermi energy Condensed Matter Physics Electronic Optical and Magnetic Materials Condensed Matter - Strongly Correlated Electrons Quantum dot Cutoff Representation (mathematics) Fermi Gamma-ray Space Telescope |
| Zdroj: | Bohr, D & Schmitteckert, P 2007, ' Strong enhancement of transport by interaction on contact links ', Physical Review B Condensed Matter, vol. 75, no. 24, pp. 241103 . https://doi.org/10.1103/PhysRevB.75.241103 |
| DOI: | 10.48550/arxiv.0704.1917 |
| Popis: | Strong repulsive interactions within a one dimensional Fermi system in a two-probe configuration normally lead to a reduced off-resonance conductance. We show that if the repulsive interaction extends to the contact regions, a strong increase of the conductance may occur, even for systems where one would expect to find a reduced conductance. An essential ingredient in our calculations is a momentum-space representation of the leads, which allows a high energy resolution. Further, we demonstrate that these results are independent of the high-energy cutoff and that the relevant scale is set by the Fermi velocity. Comment: Published version -- references corrected |
| Databáze: | OpenAIRE |
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