Linear and nonlinear transport across carbon nanotube quantum dots
| dc.creator | Mayrhofer, Leonhard | |
| dc.creator | Grifoni, Milena | |
| dc.date | 2006-12-12 | |
| dc.date | 2007-04-25 | |
| dc.date.accessioned | 2026-07-07T07:58:04Z | |
| dc.date.available | 2026-07-07T07:58:04Z | |
| dc.description | We present a low energy-theory for non-linear transport in finite-size interacting single-wall carbon nanotubes. It is based on a microscopic model for the interacting p_z electrons and successive bosonization. We consider weak coupling to the leads and derive equations of motion for the reduced density matrix. We focus on the case of large-diameter nanotubes where exchange effects can be neglected. In this situation the energy spectrum is highly degenerate. Due to the multiple degeneracy, diagonal as well as off-diagonal (coherences) elements of the density matrix contribute to the nonlinear transport. At low bias, a four-electron periodicity with a characteristic ratio between adjacent peaks is predicted. Our results are in quantitative agreement with recent experiments. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0612286 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0612286 | |
| dc.identifier | European Journal of physics B 56, 2 (12/04/2007) 107 | |
| dc.identifier | doi:10.1140/epjb/e2007-00097-3 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/127872 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Linear and nonlinear transport across carbon nanotube quantum dots | |
| dc.type | text |