Journal article · Preprint article
Coulomb drag in coherent mesoscopic systems
In
Physical Review Letters
—
2001, Volume 86, Issue 9, pp. 1841-1844
Abstract
We present a theory for Coulomb drag between two mesoscopic systems. Our formalism expresses the drag in terms of scattering matrices and wave functions, and its range of validity covers both ballistic and disordered systems. The consequences can be worked out either by analytic means, such as the random matrix theory, or by numerical simulations.
We show that Coulomb drag is sensitive to localized states. which usual transport measurements do not probe. For chaotic 2D systems we find a vanishing average drag, with a nonzero variance. Disordered 1D wires show a finite drag, with a large variance, giving rise to a possible sign change of the induced current.
| Language: | English |
|---|---|
| Publisher: | American Physical Society (APS) |
| Year: | 2001 |
| Pages: | 1841-1844 |
| ISSN: | 00319007 and 10797114 |
| Types: | Journal article and Preprint article |
| DOI: | 10.1103/PhysRevLett.86.1841 |
| ORCIDs: | Mortensen, Asger , Jauho, Antti-Pekka and 0000-0002-8311-0103 |
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