Coulomb blockade and Non-Fermi-liquid behavior in quantum dots
| dc.creator | Anders, Frithjof B. | |
| dc.creator | Lebanon, Eran | |
| dc.creator | Schiller, Avraham | |
| dc.date | 2003-11-21 | |
| dc.date | 2005-05-23 | |
| dc.date.accessioned | 2026-07-07T02:54:53Z | |
| dc.date.available | 2026-07-07T02:54:53Z | |
| dc.description | The non-Fermi-liquid properties of an ultrasmall quantum dot coupled to a lead and to a quantum box are investigated. Tuning the ratio of the tunneling amplitudes to the lead and box, we find a line of two-channel Kondo fixed points for arbitrary Coulomb repulsion on the dot, governing the transition between two distinct Fermi-liquid regimes. The Fermi liquids are characterized by different values of the conductance. For an asymmetric dot, spin and charge degrees of freedom are entangled: a continuous transition from a spin to a charge two-channel Kondo effect evolves. The crossover temperature to the two-channel Kondo effect is greatly enhanced away from the local-moment regime, making this exotic effect accessible in realistic quantum-dot devices. | |
| dc.description | 5 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0311502 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0311502 | |
| dc.identifier | Phys. Rev. B 70, 201306(R) (2004) | |
| dc.identifier | doi:10.1103/PhysRevB.70.201306 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/22742 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Coulomb blockade and Non-Fermi-liquid behavior in quantum dots | |
| dc.type | text |