2026-06-28T15:10:56Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/131132023-08-26T05:03:49Zcom_20.500.14352_14col_20.500.14352_15

00925njm 22002777a 4500 dc Paspalakis, Emmanuel author Economou, Sophia E. author Carreño Sánchez, Fernando author 2019-01-10 We use mutually delayed and partially overlapping optical pulses, similar to those used in stimulated Raman adiabatic passage and its variations, for the coherent control of quantum dot spin states in the Voigt geometry. We consider the quantum dot system initially in an incoherent mixture of the two electron-spin states. We show that the application of regular delayed and partially overlapping pulses can lead to initialization. In addition, if initially delayed, partially overlapping, and simultaneously switched off pulses are applied, the initially incoherent mixture can be changed to a specifically designed coherent superposition state. We also find that due to the initial conditions of the studied quantum system, the proposed methods work for different pulse orderings. 0021-8979 10.1063/1.5079412 https://hdl.handle.net/20.500.14352/13113 https://doi.org/10.1063/1.5079412 https://aip.scitation.org/doi/10.1063/1.5079412 Adiabatically preparing quantum dot spin states in the Voigt geometry