Leakage-induced decoherence during single electron spin manipulation in a double quantum dot
| dc.creator | Ouyang, Shi-Hua | |
| dc.creator | Lam, Chi-Hang | |
| dc.creator | You, J. Q. | |
| dc.date | 2007-07-27 | |
| dc.date.accessioned | 2026-07-07T08:20:52Z | |
| dc.date.available | 2026-07-07T08:20:52Z | |
| dc.description | Coherent single electron spin oscillation in a double quantum dot system driven by a magnetic electron spin resonance field is studied theoretically using a Bloch-type rate equation approach. The oscillation frequency and relaxation time obtained using typical model parameters are consistent with experiment findings. The dominant decoherence mechanism is identified to be a leakage current through a Coulomb blockade barrier at a quantum dot during the spin manipulation. Nuclear field fluctuations which induce a long relaxation time are found to contribute only negligibly to the decoherence despite an earlier suggestion. | |
| dc.description | 5 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0707.4040 | |
| dc.identifier | http://arxiv.org/abs/0707.4040 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/135192 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Quantum Physics | |
| dc.title | Leakage-induced decoherence during single electron spin manipulation in a double quantum dot | |
| dc.type | text |