Spectral properties and magneto-optical excitations in semiconductor double-rings under Rashba spin-orbit interaction
| dc.creator | Kuan, Wen-Hsuan | |
| dc.creator | Tang, Chi-Shung | |
| dc.creator | Chang, Cheng-Hung | |
| dc.date | 2007-03-24 | |
| dc.date.accessioned | 2026-07-07T07:57:53Z | |
| dc.date.available | 2026-07-07T07:57:53Z | |
| dc.description | We have numerically solved the Hamiltonian of an electron in a semiconductor double ring subjected to the magnetic flux and Rashba spin-orbit interaction. It is found that the Aharonov-Bohm energy spectrum reveals multi-zigzag periodic structures. The investigations of spin-dependent electron dynamics via Rabi oscillations in two-level and three-level systems demonstrate the possibility of manipulating quantum states. Our results show that the optimal control of photon-assisted inter-ring transitions can be achieved by employing cascade-type and $Λ$-type transition mechanisms. Under chirped pulse impulsions, a robust and complete transfer of an electron to the final state is shown to coincide with the estimation of the Landau-Zener formula. | |
| dc.description | RevTex, 9 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0703638 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0703638 | |
| dc.identifier | Phys. Rev. B 75, 155326 (2007) | |
| dc.identifier | doi:10.1103/PhysRevB.75.155326 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/127810 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Spectral properties and magneto-optical excitations in semiconductor double-rings under Rashba spin-orbit interaction | |
| dc.type | text |