Phonon-induced decoherence for a quantum dot spin qubit operated by Raman passage
| dc.creator | Roszak, K. | |
| dc.creator | Grodecka, A. | |
| dc.creator | Machnikowski, P. | |
| dc.creator | Kuhn, T. | |
| dc.date | 2004-04-27 | |
| dc.date | 2006-07-19 | |
| dc.date.accessioned | 2026-07-07T06:36:33Z | |
| dc.date.available | 2026-07-07T06:36:33Z | |
| dc.description | We study single-qubit gates performed via stimulated Raman adiabatic passage (STIRAP) on a spin qubit implemented in a quantum dot system in the presence of phonons. We analyze the interplay of various kinds of errors resulting from the carrier-phonon interaction as well as from quantum jumps related to nonadiabaticity and calculate the fidelity as a function of the pulse parameters. We give quantitative estimates for an InAs/GaAs system and identify the parameter values for which the error is considerably minimized, even to values below $10^{-4}$ per operation. | |
| dc.description | Final version; considerable extensions; 18 pages, 7 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0404647 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0404647 | |
| dc.identifier | Phys Rev B 71, 195333 (2005) | |
| dc.identifier | doi:10.1103/PhysRevB.71.195333 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/100118 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Phonon-induced decoherence for a quantum dot spin qubit operated by Raman passage | |
| dc.type | text |