Quantum phase transition in capacitively coupled double quantum dots
| dc.creator | Galpin, Martin R. | |
| dc.creator | Logan, David E. | |
| dc.creator | Krishnamurthy, H. R. | |
| dc.date | 2005-05-17 | |
| dc.date.accessioned | 2026-07-07T03:05:15Z | |
| dc.date.available | 2026-07-07T03:05:15Z | |
| dc.description | We investigate two equivalent, capacitively coupled semiconducting quantum dots, each coupled to its own lead, in a regime where there are two electrons on the double dot. With increasing interdot coupling a rich range of behavior is uncovered: first a crossover from spin- to charge-Kondo physics, via an intermediate SU(4) state with entangled spin and charge degrees of freedom; followed by a quantum phase transition of Kosterlitz-Thouless type to a non-Fermi liquid `charge-ordered' phase with finite residual entropy and anomalous transport properties. Physical arguments and numerical renormalization group methods are employed to obtain a detailed understanding of the problem. | |
| dc.description | 4 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0505413 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0505413 | |
| dc.identifier | Phys. Rev. Lett. 94, 186406 (2005) | |
| dc.identifier | doi:10.1103/PhysRevLett.94.186406 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/26378 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Quantum phase transition in capacitively coupled double quantum dots | |
| dc.type | text |